by Marion Nestle

Currently browsing posts about: EPA

Sep 10 2014

Congress vs. EPA’s Clean Water Act

I’m trying to understand what’s going on with the bill the House passed on Tuesday to prevent the Environmental Protection Agency (EPA) from doing what it proposed to do last April: define its ability to protect bodies of water in the United States against agricultural pollution.

Specifically, the EPA proposes that under the Clean Water Act, it can enforce pollution controls over:

  • Most seasonal and rain-dependent streams.
  • Wetlands near rivers and streams.
  • Other types of waters that have uncertain connections with downstream water (these will be evaluated on a case-by-case basis).

The Clean Water Act gives EPA the authority to set wastewater standards for industry, including agriculture.  The Act

  • Establishes the basic structure for regulating pollutant discharges.
  • Grants EPA authority to implement pollution control programs.
  • Sets water quality standards for contaminants.
  • Makes it unlawful to discharge pollutants without a permit.

The Clean Water Act most definitely applies to agriculture:

According to the account in The Hill, the bill prohibits the EPA from establishing any regulations based on the proposals.

  • The EPA says the proposals do not expand the agency’s existing authority over US waters.
  • But Republicans, joined by some Democrats, say the proposals expand EPA jurisdiction over trivial bodies of water.

Trivial, of course, is a matter of perception.  Agricultural pollutants cause much damage to US waterways.  The proposals are aimed at containing some of the damage.

No wonder agribusiness wants to stop EPA from enforcing the Clean Water Act’s provisions.

The White House says it will veto the bill.  Let’s see what happens in the Senate.

 

Jan 18 2012

Food industry opposes EPA limits on dioxins

The food and chemical industries are lobbying hard against what is expected to be a tough report from the Environmental Protection Agency (EPA).

The report will set an upper limit for safe consumption of dioxins.

Most Americans consume dioxins at levels higher than this standard, mostly from food.

About 90% of dioxins come from foods, particularly high-fat animal foods.

Dioxins mainly enter the food chain as by-products of industrial processes.  To a lesser extent, they also come from natural processes such as volcanoes and forest fires.  They contaminate land and sea, are consumed in feed, move up the food chain, and end up in the fatty parts of meat, dairy products, and seafood.

Dioxins accumulate in fatty tissues.  They increase the risk of human cancer more than any other industrial chemical.

The EPA is expected to recommend an intake limit of 0.7 picograms of dioxin per kilogram body weight per day.  A picogram is one trillionth of a gram.  The World Health Organization and European Union limit is higher—from 1 to 4 picograms per kilogram per day.

The food and chemical industries argue that the proposed EPA limit is too low.

The EPA thinks less is better.  Dioxins are toxic and Americans typically consume amounts within the European range.   A single hot dog can contain more dioxin than the proposed limit for a 2-year-old.

Dioxin levels in the United States have been declining for the last 30 years due to reductions in man-made sources. But they break down slowly and persist for a long time in the environment.

How to avoid them?  The best way is to eat less high-fat meats, dairy foods, and seafood.

No wonder the food industry is alarmed.

A “Food Industry Dioxin Working Group” of trade associations such as the International Dairy Foods Association, the American Frozen Food Institute, and the National Chicken Council wrote to the White House:

Under EPA’s proposal…nearly every American – particularly young children – could easily exceed the daily RfD [reference dose] after consuming a single meal or heavy snack…The implications of this action are chilling.

Since the agency contends the primary route of human exposure to dioxin is through food, this could not only mislead and frighten consumers about the safety of their diets, but could have a significant negative economic impact on all US food producers.

These groups singled out the media for particular blame:

The media will inevitably report on this change and in all likelihood misinterpret the RFD as a ‘safe limit’. As a result, consumers may try to avoid any foods ‘identified’ as containing or likely to contain any dioxin.

Eat more fruits and vegetables anyone?

Congressman Ed Markey (Dem-MA) is urging the EPA to get busy and release its report:

The American public has been waiting for the completion of this dioxin study since 1985 and cannot afford any further delays…A baby born on the day the EPA completed its first draft health assessment would be 27 years old today. I’d like to see the final EPA analysis before it turns 28.

Let’s hope the EPA does not cave in to industry pressure and releases the report this month as promised.

Technical note:

“Dioxins” collectively refers to hundreds of chemical compounds that share certain structures and biological characteristics. They fall into three closely related groups: the chlorinated dibenzo-p-dioxins (CDDs), chlorinated dibenzofurans (CDFs) and certain polychlorinated biphenyls (PCBs). The most studied is 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD).  PCBs are no longer produced in the U.S.

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