WASHINGTON (October 28, 2022) – As part of National Lead Poisoning Prevention Week, today the U.S. Environmental Protection Agency (EPA) highlighted several federal enforcement actions completed from October 2021 through September 2022, as well as future planned investigations. These actions ensure that renovation contractors, landlords and realtors comply with rules that protect the public from exposure to lead from lead paint. By bringing companies into compliance with these rules, EPA protects future customers and their families.
Lead-contaminated dust from chipped or peeling lead-based paint in homes built prior to 1978 presents one of the most common causes of elevated blood lead levels in children. Infants and children are especially vulnerable to lead paint exposure because their growing bodies absorb more lead than adults do, and their brains and nervous systems are more sensitive to the damaging effects of lead.
“Because lead-based paint is the most common source of elevated blood lead levels in U.S. children, EPA is taking action against those who violate federal lead-based paint regulations and ensuring the public understands the danger of this hazard,” said Larry Starfield, EPA’s Acting Assistant Administrator for the Office of Enforcement and Compliance Assurance. “The enforcement actions EPA took this past year send a clear message that EPA is committed to enforcing regulations designed to protect the public from lead-based paint exposure.”
Reduction of childhood lead exposures is a high priority for EPA. These enforcement actions reflect the agency’s continuing commitment to implementing the Federal Lead Strategy and EPA’s Lead Strategy and result in reducing or eliminating lead exposures, particularly to children.
Regulations under the federal Toxic Substances Control Act (TSCA) and the Residential Lead-Based Paint Hazard Reduction Act (LHRA) apply to most pre-1978 dwellings and child-occupied facilities such as pre-schools and child-care centers. TSCA’s Renovation, Repair and Painting Rule (RRP) and Lead-based Paint Activities Rule require contractor certification and lead-safe work practices. LHRA’s Section 1018 Lead Disclosure Rule requires disclosure of information about lead-based paint before the sale or lease of most housing built before 1978. By ensuring compliance with federal lead-based paint requirements, EPA addresses a major source of lead exposure that occurs in communities across the nation.
The cases below involve alleged noncompliance with at least one of these lead paint requirements. These cases highlight the range of the Agency’s work, including:
criminal prosecution in conjunction with the U.S. Department of Justice (DOJ),
a focus on geographic areas that suffer from disproportionate levels of lead exposure, and
bringing civil administrative actions against renovators with a far-reaching influence on the compliance landscape locally, regionally or nationwide.
By ensuring compliance with federal lead paint requirements, EPA strives to address major sources of lead exposure that occur throughout the nation and particularly in areas of environmental justice concern. In addition to EPA’s actions, the Agency supports states, tribes, and territories on the implementation and enforcement of the EPA-authorized lead-based paint programs.
Although the federal government banned residential use of lead-based paint in 1978, it persists in millions of older homes, sometimes under layers of new paint. Lead exposure, particularly at higher doses, continues to pose a significant health and safety threat to children, preventing them from reaching their fullest potential for their health, intellect, and future development. Even small amounts of lead dust can cause harm to children living in the home.
Asbestos is a naturally-occurring mineral created by geochemical processes within our planet. Although infamous for its link to cancer, it also has many potential beneficial properties. The difficulty is to avoid the negative aspects of this potentially dangerous mineral while enjoying its positive aspects.
Radon – Radionuclides – Cancer (Polycythemia vera (pol-e-sy-THEE-me-uh VEER-uh)) – Radon is a gas produced by the radioactive decay of the element radium whose remote parent is either uranium or thorium
Forever Chemicals – What Are PFOA, PFOS, PFAS, and PFCs ? Per- and polyfluoroalkyl substances (PFAS) are a grouping of man-made fluorinated organic chemicals that have a wide range of use in industrial application and commercial goods
One of the most important issues related to consumer products, the environment, and the public health is the new problem “forever chemicals” and a specific group called PFAS. PFAS are man-made per- and polyfluoroalkyls chemicals that includes PFOA, PFOS, GenX, and others. Starting in the 1940s, these chemicals have been manufactured around the world and these chemicals historically can be found in food packaging, commercial household and personal products, manufacturing and industrial facilities, waste discharges, landfill leachate, and firefighting products and clothing. At this moment, the PFOA Stewardship Program has phased out SOME of these PFAS chemicals so they are no longer manufactured in the United States.
But wait, we are a global community and these compounds can bioaccumulate and can now be found in the environment and US (That is right You and me!) and the available studies suggest that these PFAS chemicals (PFOA and PFOS) can adversely impact human health. In animal studies, these chemicals have shown to cause tumors, adversely impact the liver and kidney, reproductive system, impact developmental,
The most-studied PFAS chemicals are PFOA and PFOS. Studies indicate that PFOA and PFOS can cause reproductive and developmental, liver and kidney, and immunological effects in laboratory animals. Both chemicals have caused tumors in animals. Human epidemiology studies have shown these chemicals increased cholesterol levels and the available data suggests these compound also negative influence infant birth weights, reduced immune system, thyroid hormone, ulcerative colitis, and potentially cause cancer.
The routes of exposure to this compounds includes are work environment, foodborne routes, commercial products, and our drinking water. If you work in a facility using PFAS or producing products made with PFAS you can be exposed direct exposure or contaminated air. Foodborne routes included contaminated equipment used to process food, food packaging (coated cardboard / fast food paper), cookware (use PFOA Free Cookware) and/or the environment and conditions under which the food is grown. PFAS exposure can come from consumer products like water-repellent, nonstick cookware, stain-water repellants, cosmetics, cellphones, lubricants and much more. Since these chemicals are not routinely tested in drinking water and they are difficult to breakdown, PFAS has been found in drinking water sources that include streams, lakes, groundwater, well water, springs, and even city water. “Testing by the EPA has determined that 6.5 million people have been exposure to PFOA in their drinking water and the chemical has been detected in over 94 public water supplies in 31 different states” and in 2004 99.7% of Americans had detectable levels of PFOA in their body”. The EPA advisory limit, not enforceable, for PFOA and PFOS in drinkingwater at 70 parts per trillion (Update).
The Keystone Clean Water Teams goal is to provide resources to help you get your water tested and to provide fact based information. Since this testing is normally not readily available, we have partnered with a national testing company to provide you with some testing options. We are offering these 4 informational testing packages.
Go to ResinTech is a global leader in ion exchange for water purification, helping distributors and operators worldwide (Forever Chemical Testing)
Note: Informational Testing (Level 3): “Results are not intended to be used to meet any regulatory requirements or for litigation purposes. Results are for informational and educational purposes only and are useful in determining general water quality and safety”. “Laboratory tests were conducted by methods approved by the U.S. Environmental Protection Agency or variations of these EPA Methods”. Informational Water Testing conducted through a partnership between the Keystone Clean Water Team, B.F. Environmental Consultants, and Resin Tech Inc. The results of this testing are intended for an educational or informational purpose only and not used for a regulatory function or litigation. If you are looking for Well Water or City Water Testing.
Get Treatment
EPA officials recommend NSF and ANSI Certified filters to reduce PFOA and PFOS. ” P473: Drinking Water Treatment Units – PFOA and PFOS — to verify a water treatment device’s ability to reduce perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) to below the health advisory levels set by the U.S. Environmental Protection Agency (EPA).”
Treatment Options: (Point of Use Filters meets P473 and other standards)
Article for: private well owner, spring user, city water customer, regulated water supply, water utility customer, homeowner, landlord, tenant, drinking water
The Flint water crisis reportedly started in 2014 and ended in 2019, but in reality the “crisis” started prior to 2014 and probably has not ended. Why? The problem with corrosion within the water system and individual’s homes clearly started prior to 2014 and the customers and users within the system were not aware of the short-comings in their drinking water quality, the need for corrosion control, need to replace service laterals, plumbing within their homes, the need to be proactive in protecting your personal and families’ health, lack of public outreach and education, and not knowing the wrong signs of a corrosion problem The main purpose of this article is to help identify the warning signs of a potential corrosion problem with your drinking water. The signs of a corrosion problem come in many forms, but it is important for the user to take responsibility for keeping their eyes open. Corrosion of our drinking water supplies is a very common water quality and public health issue that is related to not only the raw water quality, level of pretreatment, status of the community distribution system, the internal plumbing for a building, the usage and management of water within the building, and the fixtures used within the system. This sounds overwhelming, but there are clear warning signs you may have a problems.
The most common signs of a problem with corrosion included the following:
Staining of porcelain fixtures, such as sinks, drains, or tubs that appear green, blue-green, and reddish brown.
Coatings on aeration devices that appears greenish-gray or bluish green and particles on the screen of the aerator that appear green, bluish-green, greenish-gray, reddish-brown, yellow-brown, or even bluish-gray.
Discoloration of water piping near solder joints and/or pin-hole leaks in piping and the premature failure of water appliances and water heaters.
Old piping in a home that may include lead pipes or piping that was installed using high lead solder, such as lead service lines and galvanized piping.
The first flush of the water from the tap may have a bitter taste.
What is the age of your home, when was the house last remodeled, and the piping in your home?
YOUR household plumbing may be the cause for lead in your drinking water. In older homes, lead was used to make the piping and/or solder. In homes, built prior to 1930’s water pipes were primarily made from lead. These pipes can be identified because the piping tends to have a dull gray color, can be scratched with a key, and a magnet will not stick to the piping. In buildings built between the 1930’s and early 1980’s, copper pipes were often used, but the solder contained elevated levels of lead. The primary source of the lead includes the use of lead pipes, lead lined tanks, and use of 50/50 lead/tin solder. Because of the concern with lead, the EPA banned the use of high lead solders in 1986.
In the 1950’s and 1960’s galvanized water lines was utilized in new home construction. Currently, this type of piping is not widely used, but it is more commonly used with well water applications. This piping is steel piping that has a zinc coating to reduce the tendency for the piping to corrode. When this pipe corrodes, the pipe rust from the inside of the pipe and then works outward. When this occurs, the water may produce intermittent discolored water that tends to be brown, yellow, or reddish brown, and the piping will likely clog with rust and most likely collapse over time. This does not mean that a newer home is safe from lead contamination; in fact, the available data suggests that buildings less than 5 years old can have high levels of lead.
In fact, buildings built prior to 1986 likely contain some lead plumbing. Prior to 2014, the legal definition for “lead free” was plumbing fixtures with a lead content of less than 8 %. In 2014, the term was redefined to include only fixtures with a lead content of 0.25% and newly installed fixtures must use the “lead free” materials, but this did not apply to fixtures currently in use.
What You Can Do to Protect Yourself and Your Family?
After getting this information, you should do the following:
Inspect your plumbing system for signs or evidence of a corrosion problem and low cost lead screening testing (water) or (paint,dust, soil).
Take note of the visual and aesthetic signs of a corrosive water problem.
Get Your Drinking Water Tested and the Results Reviewed by a Professional. At a minimum, we recommend the “Corrosion Check” Water Test Kit.
Act to improve your drinking water quality by reporting problems to your local water authority for public water supplies or if your water comes from a private water source take the necessary action to reduce the risk to the health of yourself and your family and to reduce the potential costs associated with the premature failure and/or invalidating the warranty of water related appliances, water leaks and associated damage, and/or the additional operational costs associated with inefficiencies associated with clogged or corroded piping/equipment.
Update fixtures and piping and consider the use of point-of-use filters or a whole-house water treatment system. Before installing a water treatment system, please get a comprehensive water quality test (City Water) or (Well Water).
Our Motto is ” Learn / Diagnose / Test “
Learn – learn about your source and system.
Diagnose – determine the warning signs or symptoms of a problem and get the water tested and problem diagnosed.
Test – implement an approach to mitigate the problem and test to make sure the problem is corrected.
Source: Oram, Brian; “Lead In Drinking Water – Is There Lead In My City Drinking Water ?”, Water Research Center / Know Your H20 Program, 2020.
On September 19, 2019, the Pike County Conservation District hosted a 2-hour informational work and training session. The topic – Properly Maintaining Your On-Lot Septic System
To help Pike County residents keep local lakes and ponds clean, the Pike County Conservation District is hosting a free three-part workshop series titled “How your Backyard Activities Affect your Lake.”This is the third workshop in the series. It will be held at the Dingman Township Fire Hall, 680 Log Tavern Road. Presenter Brian Oram, a Professional Geologist with Water Research Center and B.F. Environmental Consultants Inc., will discuss the basic functionality of an on-lot system and best practices to help prevent water pollution.
During the session – Mr. Brian Oram promised to post a few items:
Here is a copy of a document the presenter found available on the local agency website on septic systems.
The Keystone Clean Water Team on-line store, get a copy of our educational booklet, order a neighborhood hazard report, mail order water testing program, at-home water screening and more.
The Keystone Clean Water Team has been involved in watershed training and citizen based science programs since the foundation of the organization. We have conducted rain barrel workshops, training sessions on low impact development and rural/urban landowner stormwater management, citizen science and stream and lake monitoring programs, education on conservation of water, resources, and energy, private well owner outreach, groundwater/watershed education, and stream and watershed assessments.
In June and July of 2019, we were asked by the Penn State Master Watershed Steward Program to conduct 2 training sessions for their education efforts.
Program 1: “Earth- Was Not Always a Big Blue Ball”
Program 2: “Pennsylvania – Balancing Natural Gas/Development/ Groundwater and the Environment ”
If you are looking for other resources on these topics, please consider the following:
You can find information on the Penn State Master Watershed Steward program was established to educate and empower volunteers to protect environmental resources. Training and volunteer service are coordinated at the county level by extension staff, partners, or trained volunteers. Generally 15-20 people are selected for the program each year. Those accepted to the program attend training classes that focus on a broad range of water resource topics, including groundwater, stream ecology, wetlands, invasive plants, water recreation and stormwater management. There is a one-time registration cost to those accepted into the program. This is to cover the cost of the manual, name tag, and cost of the meeting facilities. Master Watershed Stewards work with the community to improve the health of our streams, rivers and other natural resources.
Example projects
Organizing educational events such as rain barrel building workshops and seminars on backyard stormwater management.
Next Thursday, May 2, the Upper Delaware River Basin Citizens or UDRBC will be holding a seminar in Lookout, Pennsylvania to talk landowner rights and more.
Be there! The UDRBC, lead by Ned Lang and a large group of Upper Delaware River citizens will be conducting an in-depth discussion of natural gas exploration and development. The Upper Delaware River Basin Citizens (‘UDRBC’) has announced the topic of its Spring Seminar scheduled for Thursday, May2, 2019 at the Lookout Fire Hall, 2625 Hancock Highway, Equinunk, Pennsylvania.
The seminar will be held from 9:00 AM to 2:30 PM, with lunch provided and will feature numerous speakers. Registration is online at https://udrbc.com under “EVENTS” and space is limited.
UDRBC Seminar Speakers- May 2, 2019
Major speakers will include:
BRIAN ORAM: Brian is a Professional Geologist and Soil Scientist for B.F Environmental Consultants. He is also a Private Well Owner Educator at PACleanwater and Managing the Keystone Clean Water Team. Water quality education is both and expertise with this entertaining expert. He knows Northeastern Pennsylvania water and geology like no one else.Brian’s specialties include well migration issues, natural gas, hydrogeology, carbon sequestering, brine water treatment and water reuse. He will address the relationship between natural gas development and water quality.
During this presentation, we will discuss water quality, groundwater, environmental issues with natural gas development, and activities that landowners/royalty owners can do to protect themselves, their community, and the environment. We will announce the free phone App that is available from the Keystone Clean Water Team on Baseline Water Testing and encourage citizens to participate in a citizen based groundwater assessment using their baseline data. (Slide Presentation – pdf version baselinetestingwaynecounty2019slide )
PAT HENDERSON: Pat has over 20 years experience in legislative and executive branches of government, and with leading nationally-recognized energy advocacy trade organizations. Pat is currently employed at the Marcellus Shale Foundation. He is an expert on Marcellus Shale development policy and knows government inside and outside. Pat will address the latest shale gas issues from the perspectives of both industry and policymakers.
JEFF BELARDI: Attorney Jeffrey Belardi practices out of Scranton, PA and has been licensed for 25 years. He attended Widener University and handles cases in Corporate & Incorporation, Criminal Defense, State, Local And Municipal Law, Litigation. Jeff is also one of three attorneys handling the Wayne Land and Mineral Group lawsuit against the DRBC and in defense of landowner rights.
It is important to Learn, Diagnose, and Test. Public outreach is part of the Mission of the Keystone Clean Water Team. To learn more about this Organization and support their efforts, please go to http://www.pacleanwater.org
Learn about the facts and not the fear – Scare Pollution (must read):
A book on climate and climate change – a must read:
Please Get Your Water Tested – At a minimum, an comprehensive Informational Water Quality Test to at least determine your general well water quality and learn about the hazards in your community. This is not certified baseline testing, but it is a low cost means of evaluating your drinking water source. It is important to KNOW Your H20! Get Your Water Tested and order a Neighboorhood Hazard Reports for your Home.
Violations At NJ Utilities Enumerated In New Report
By Sara Jerome, @sarmje
“A new analysis of New Jersey drinking water reveals widespread challenges.“More than 1.5 million New Jerseyans are served by a utility that has been cited for excessive contaminants since April 2014, when the Flint water crisis was revealed, according to an analysis of U.S. EPA data by USA TODAY NETWORK New Jersey,” The Asbury Park Press reported. “The data shows that water utilities in the Garden State have racked up at least 226 contamination violations of the Safe Drinking Water Act since Flint became synonymous with tainted tap water and put other water systems under a spotlight,” the report continued. The report shows the state’s water challenges extend even beyond Newark, which is undergoing a major lead crisis.”
“City officials in Newark said they learned in October that lead water contamination wasn’t just affecting a dozen homes, but was a “widespread problem,” potentially impacting as many as 40,000 residents. But, a newly-released email shows officials were warned at least seven months earlier — months they spent insisting the water was “absolutely safe to drink,” and assuring residents that the issue was confined to a small number of homes.
Beginning in April of this year, through messages on its website and in public statements, the city blamed old infrastructure for elevated lead levels in tap water samples. New court records in an ongoing federal lawsuit over the city’s lead problem, however, show a consultant pointed to another cause: Newark’s water treatment at one of its plants no longer appeared to work — an early sign that the issue could be widespread.
CDM Smith, the consultant hired by Newark to study how the city was treating its water, submitted its draft report in October but shared its initial findings with three officials as early as February, records show.
In a Feb. 22 email to the city’s top water department officials — including then-director Andrea Hall Adebowale and then-deputy director Kareem Adeem — the consultant said a preliminary review showed Newark’s method of preventing lead from corroding off old plumbing and dissolving into the distribution system “has not been effective.””
Identifing and fixing system wide water distribution problems related to corrsion is not fast or easy.
Part of the problem may be your own household plumbing, fixtures, and service lines – have a plumber check your piping.
In my opinion, it is the user that will first notice a problem. These problems could be identified as a blue-green coating of aerators, blue green water, a metallic taste, and in the extreme corrosion and leaky pipes.
Check your home for lead paint and dust hazards.
We strongly recommend all water users to due the following:
“In 1654, Rembrandt painted a woman, in Amsterdam, bathing in a stream. As she lifts her nightdress above her knees and treads deeper, the woman is stepping from one world into another. Among art historians, the transition she is making is metaphorical. But to a biologist, it is also ecological.
We imagine water to be clean, and we imagine clean to mean lifeless, and yet all the water you have ever bathed in, swum through, or drunk has been full of life, from bacteria to tiny crustaceans. So, too, the pipes in which it travels. As water passes through pipes in general and showerheads in particular, a thick biofilm builds up. Biofilm is a fancy word that scientists use to avoid saying “gunk.” It is made by individuals of one or more species of bacteria working together to protect themselves from hostile conditions—including the flow of water, which constantly threatens to wash them away—via their own excretions.”
This is a very timely article – we work with a lot of private water systems, public water supply systems, and businesses that have a biofilm problem and to be honest I have had this problem in my home (s) that were serviced by both city water and well water.
First Step – Learn
Biofilms and Bacteria – bacteria does not normally grow free-living in the drinking water, but attached to the piping or surfaces within the system as a biofilm. This microbiological community can include a variety of organism that may be aerobic (like or need oxygen), anaerobic (low oxygen), or facultative(in the middle). The bacterial coating may be clear or discolored, create odors, contain trace metals, or promote microbiologically induced corrosion. The bacteria can impact the quality of the drinking water and the integrity of the distribution system. When people test city or well water, they normally only test for total coliform bacteria and may be E. coli., but that is not enough.
Second – Diagnose
The next step is to diagnose, but diagnose is really using a combination of observations and testing to determine if there may be a problem or concer.
We recommend the following:
Visually inspect the plumbing – look in the back of the toilet tank is the wall discolored, if discolored does it feel slimy, look in the bathroom do you see films or coating on showerheads or other surfaces. If you have any clear tubing, does the tubing have any observable films or coatings. If you have a particle filter, does it feel slimy.
Are there any odors or strange smells to the water.
If the water sits, does it have a floating metallic sheen on the surface.
Have you been experiencing problems with discolored water that is black, brown, or even greenish blue?
Flush the water heating tank – what do you see?
If you observe a film or coating, you may have a biofilm problem.
If the bacteria is pink, this may be Serratia marcescens. This is typically an airborne bacteria and we suggest that you wash the services with an anti-microbiological cleaner, monitor and control the humidity of the room, regularly clean the surfaces, wipe down showers after use, and keep the ventilation fan running for at least 20 minutes.
The next question is do you have any health issues?
If health issues are gastrointestinal and you have slime coatings – We recommend testing for total coliform, E. coli., and slime forming bacteria, and standard plate count.
If you do not have health issues, but have slime coatings with discolored water, we would recommend total coliform, iron related bacteria, slime forming bacteria, and standard plate count.
If you major health issues that include respiratory issues with or without gastrointestinal issues we recommend total coliform, E. Coli, and Waterborne Pathogen Panel.
Third Step – Test/ Monitor
Testing can include a variety of measures that include:
When we think about doing laundry we typically think of laundry detergents, fabric softeners, and hot water. Skin irritations and allergic reactions are often from detergents and other soaps left in fabrics. Most individuals use laundry detergent for flowery, “fresh” smelling odors. Laundry Detergents and fabric softeners contain Volatile Organic Chemicals, below are just a few of the hazardous materials.
Phosphates: Manufacturers use these to make detergents more effective in hard water, and to help prevent dirt from settling back on clothes when they’re washing. These chemicals have long been associated with environmental damage, particularly in our streams and waterways. They cause algae blooms that damage ecosystems.
Cleaning agents (surfactants): These are included in the formula to help the product clean better.
Stabilizers: These chemicals help stabilize the formula, so that it lasts longer on the shelf.
Bleach: It’s known to irritate skin, eyes, and lungs, and when it mixes with wastewater, it can form toxic organic compounds that have been linked with respiratory issues, liver, and kidney damage.
Brighteners: Chemicals that remain on the clothes to absorb UV light and help clothes “appear” brighter. These chemicals also remain on the clothes so they are most likely to come into contact with skin.
EDTA: Many detergents have eliminated these, but they’re often using ethylene diamine tetra-acetic acid (Ethylenediaminetetraacetic acid-EDTA) in its place, which does not readily biodegrade, and has been found to be toxic in animal studies.
Fragrance: Manufacturers combine many chemicals to produce a fragrance—so you’ll believe your clothes are clean because they smell clean—and they don’t have to list those chemicals on the label because of trade protection.
Ozone as a detergent-less laundry cleaning solution kills micro-organisms found in dirty laundry – and does so 3000 time faster than bleach! Dr. Sheila Baker, Professor in the Department of Chemical Engineering at the University of Missouri-Columbia, scientifically examined the technology behind the use of Ozone for detergent-less laundry solutions. Her research is focused on designing task-specific ionic liquid systems, nano-materials and their hybrids for clean energy applications. In her paper, Report on Ozone Laundry Systems, Dr. Baker finds that “Ozone does work for removing stains,” examining how it works, its effectiveness, as well as the threefold benefits of ozone. Below are excerpts from that report.
History
Ozone for commercial laundry applications was first introduced in the late 1970s-early 1980s in penal institutions but their performance was poor. (1) A second generation in the 1990s had better performance, and their performance has increased since then due mostly to a better understanding of how these systems work. By 2009, there were over 4,000 commercial laundry facilities that were using ozone laundry systems. (1) Some newer systems today offer controlled and variable levels of ozone and sensors that monitor and sometimes control ambient ozone levels.
How Ozone Works
Ozone does work for removing stains from laundry. It works through an oxidation mechanism whereby ozone and an OH radical, a breakdown product from ozone and water, can both work as oxidants. Ozone is a superb antimicrobial agent and can eliminate even superbugs when used properly. Also, ozone is very economical. It works best in cold water and relaxes the fabric so no softener is required and shortens drying times. Due to the cold water and shorter dryer times, fabric life is often extended. As for whitening abilities, ozone is similar to hydrogen peroxide. The method for cleaning by ozone in water is based on two reaction mechanisms – a direct and an indirect mechanism. (2,3,5) The direct method occurs when ozone acts as the oxidizer itself to break chemical bonds. The indirect method involves ozone reacting first with water to produce OH-radicals followed by the OH-radicals oxidizing chemical bonds. When ozone and OH-radicals come in contact with soils and stains in linen, they help break chemical bonds to release the stain or soil. One kind of reaction (direct or indirect) will dominate, depending on various factors, such as temperature, pH and chemical composition of the water. The higher the pH and temperature, the more OH-radicals will be produced. While OH-radicals have even greater oxidizing power than ozone, they are very short-lived in solution.
Effectiveness
Ozone is considerably more effective at lower water temperatures such as cold or ambient temperature water. This is due to its increased stability and higher solubility at lower water temperatures. Thus, it is recommended to use ozone on cold water cycles. This saves energy from not needing to heat the water.
In a recent study, when compared to hydrogen peroxide, ozone utilized in cotton preparation was able to obtain a Stensby degree of whiteness of 81 of scoured samples which was comparable to hydrogen peroxide. (5) Further, no strength loss of the fabric was observed. As compared to chlorine bleach, the levels of ozone present may not always be high enough to offer the same level of bleaching stains. (1) For these cases, some chlorine may be required in conjunction with ozone to achieve the highest effectiveness. If a bleach cycle is required, a scouring agent (acid) or multiple rinse cycles may be required to lower the pH so as to prevent skin irritations. However, ozone can often be used with colored fabric without the concern for bleaching the fabric, unlike chlorine bleach. Further, for disinfection purposes, you can use ozone alone instead of bleach. Ozone can reduce or eliminate the need for fabric softeners. Fabric softeners increase drying times due to the way they coat fabrics. However, the way in which ozone and oxygen assist in relaxing the fabric, more water is extracted during the spin cycle so that less drying time is needed. Due to the cold water and shorter dryer times, fabric life is often extended. Basically, ozone oxidizes the soil in the fabric allowing it to detach easier.
Benefits of Ozone
The reported benefits of ozone are three-fold: economical, microbiological, and environmental.
Economical
A California hotel conducted a study over a 2-month period in a facility with 104 rooms to compare traditional an EcoTex ozone laundering system. (1) They found the annual costs of ozone vs. traditional laundry was less in the categories of electrical (30% savings), natural gas (81% savings), chemical (21% savings), water (26% savings), and labor (39% savings). A 2012 hotel study entitled ‘Ozone Laundry – 95 Room Hotel Payback Study” showed similar results and a savings of almost $780 per month. (6) They found that the ozone laundry system saved over 47% of fuel costs for boiler and dryer operation, with a 74% savings for the boilers (hot water) alone. In addition, the system eliminated softener costs, reduced electrical costs for the washers and dryers by about 13%, and reduced linen replacement costs by 10%.
Microbiological
Ozone has been shown to effectively control, disinfect, and/or totally eradicate microorganisms normally found in soiled laundry in many studies.1 For example, one study found that several microorganisms such as E. coli and many types of viruses were eradicated within minutes by ozone cold water laundering. (7) Even more impressive, the same was found for two superbugs (MRSA and C. difficile). These superbugs are often resistant to traditional hot water laundry processes. However, the disinfection is a time-dependent process. Ozone is effective in killing bacteria in 3 minutes and viruses in 6 minutes. So, in this aspect ozone laundry system out perform traditional systems. It is recommended that laundry wash cycles be 10-12 minutes in order to determine a concentration over time value that is the recommended method to report compliance with U.S. EPA disinfection requirements of drinking water.
Environmental Impacts
The use of ozone for laundry also has environmental benefits. The strong oxidizing power of ozone and OH-radicals initiate the conversion of most organic components of the soiling materials into more readily biodegradable byproducts. (8) The discharged water from laundry wastewater systems that use ozone typically contain higher levels of oxygen which benefits receiving streams, lakes, and rivers by providing oxygen for the natural microorganisms to do a better job of breaking down discharged pollutants into carbon dioxide and water. (8)
Oxidizer Pro INC.
If you are interested in hearing more about how our American Made Detergent-less laundry system works, we will be happy to answer all your questions. Our revolutionizing detergent-less laundry product is not only ecofriendly but also very safe and healthy. We look forward to speaking with you soon.
Phone: 440-746-0343
Website: www.oxidizeit.com
Email: info@oxidizeit.com
References
References
Rice, R. G.; DeBrum, M.; Cardis, D.; Tapp, C., The ozone laundry handbook: A comprehensive guide for the proper application of ozone in the commercial laundry industry. Ozone: Science and Engineering 2009, 31 (5), 339-347.
Von Gunten, U., Ozonation of drinking water: Part I. Oxidation kinetics and product formation. Water Research 2003, 37 (7), 1443-1467.
Hamilton Gordon, A.; Ribner Bruce, S.; Hellman Thomas, M., The Mechanism of Alkane Oxidation by Ozone. In Oxidation of Organic Compounds, AMERICAN CHEMICAL SOCIETY: 1968; Vol. 77, pp 15-25.
Von Gunten, U., Ozonation of drinking water: Part II. Disinfection and by-product formation in presence of bromide, iodide or chlorine. Water Research 2003, 37 (7), 1469-1487.
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DEL Ozone Laundry Saves Hotel $9,000 a Year. http://www.environmentalleader.com/2012/10/17/del-ozone-laundry-saves-hotel-9000-a-year / (accessed April 14, 2013).
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