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NR445 Rule Revision: Regulation of Toxic Air Emissions


Statement of WISPIRG Director Kerry Schumann Regarding NR445 Rule Revision: Regulation of Toxic Air Emissions

As the new home of WISPIRG's environmental work, Wisconsin Environment can be contacted with any questions regarding this testimony.  

There are about 80,000 chemicals in use by industry today. Chemicals are used in the creation and processing of thousands of products. They are used to create plastic products, from toys to toilet sets. They are used in creating electronics, paper products, machinery, pharmaceutical and personal care products, and household cleaners. Chemicals are also used in the process of food production, like packing meat and vegetables, and even during electricity generation.

When factories across the U.S. and Wisconsin use chemicals to create products they also release many of these chemicals, polluting the air we breathe.

Many of the chemicals in use today are toxic and are threatening the health of Wisconsinites. Chemical air emissions can lead to cancer, birth defects, neurological damage, impaired fetal brain development, respiratory problems, reproductive problems, suppressed immune systems and developmental delays.

Despite the many health effects we are aware of from chemical air emissions, there is an even larger problem: we know almost nothing about the effect most chemicals are having on human health. That is because very few chemicals are tested for health effects before they reach the market. Of the 80,000 chemicals in use today, 2,800 are considered high production volume chemicals - meaning industry uses over 1 million pounds per year. We only have health information for about 7% of the 2,800 high production volume chemicals, and for less than 1% of the total chemicals used.

And, to make matters worse, we do not know the cumulative effect to health when humans are exposed to multiple types of chemicals from multiple sources over long or short periods of time.

Why are the effects of man-made chemicals such a mystery? Most people probably assume that any chemical on the market today underwent safety testing before being approved for use. Unfortunately, that is not the case. The federal government does not require chemicals to be tested before they are used, and industry pressure has prevented much-needed chemical safety laws from becoming a reality in the United States.

Because of scientific research by groups like the National Toxicology Program and the World Health Organization's International Agency for Research on Cancer, we are slowly learning the effects of different chemicals on human health. This research is also often finding that chemicals are toxic to humans in much smaller quantities than was previously realized. As more scientific research becomes available, it is imperative that state and federal government take action to limit air emissions of chemicals that have been found to be toxic.

WISPIRG supports the Wisconsin Department of Natural Resources' decision to update the state's list of hazardous air contaminants based on scientific research. We fully support the addition of chemicals that have been found to harm human health to the list of regulated air toxins. We support the reductions in allowable emission levels for many of the chemicals on the existing list based on scientific research. WISPIRG also supports the change to risk-based thresholds as the standard for setting emissions levels.

While the additional listing and the decreased emission levels are a good step forward and could result in less dangerous chemicals in Wisconsin's communities, industry pressure has resulted in gaping loopholes in the ability of the DNR to ensure that industries are complying with the law. The rules also ignore some important health concerns such as the cumulative effect of exposure to multiple chemicals and the need to list all chemicals that have been found to adversely impact human health.

We call on the Wisconsin DNR to protect human health by making the following changes to the proposed hazardous air pollution rule:

  • The DNR must protect the public from all sources of airborne pollution. All chemicals that have been listed as hazardous by either the National Toxicology Program or the World Health Organization must be regulated. The DNR must also create a process to quickly regulate additional chemicals as scientific research becomes available.
  • DNR must assess health threats from a person's total exposure to air pollution. Through either monitoring or approved models, DNR and industry must show that citizens living in communities around polluting facilities will not be exposed to levels of air emissions that can lead to cancer, birth defects, respiratory disease, cardiopulmonary disease, suppressed immune system or other related illnesses from toxic air pollution. The DNR must consider the cumulative effect of emissions from multiple factories on human health, rather than simply considering each facility separately.
  • The DNR must set risk-based thresholds that better protect public health. The risk-based thresholds should be changed from 1 in 100,000-risk to 1 in 1 million-risk.
  • The DNR must hold industry accountable to unsafe emissions and enforce the law consistently. Industries who illegally emit toxic chemicals must not be protected from fines or other legal action through the proposed "safe harbor" or "incidental emitters" policies. Both of these programs will protect illegal polluters from being held responsible for negatively impacting human health.