Selected tag(s): paint

When it comes to lead, formula-fed infants get most from water and toddlers from food, but for highest exposed children the main source of lead is soil and dust

Tom Neltner, J.D.is Chemicals Policy Director

On January 19, the Environmental Protection Agency (EPA) released a major new draft report proposing three different approaches to setting health-based benchmarks for lead in drinking water. We applauded EPA’s action and explored the implications for drinking water in a previous blog. One of the agency’s approaches provides useful, and surprising, insights into where the lead that undermines the health of our children comes from. Knowing the sources enables regulators and stakeholders to set science-based priorities to reduce exposures and the estimated $50 billion that lead costs society each year.

The EPA draft report is available for public comments until March 6, 2017, and it is undergoing external peer-review by experts in the field in support of the agency’s planned revisions to its Lead and Copper Rule (LCR) for drinking water. Following this public peer-review process, EPA expects to evaluate and determine what specific role or roles a health-based value may play in the revised LCR. With the understanding that some of the content may change, here are my takeaways from the draft:

  • For the 20% of most exposed infants and toddlers, dust/soil is the largest source of lead. Since we know that 21% of U.S. homes (24 out of 114 million) have lead-based paint hazards, this should not be surprising.
  • For most infants, lead in water and soil/dust have similar contributions to blood lead levels, with food as a smaller source. If the infant is formula-fed, water dominates.
  • For 2/3 of toddlers, food appears to provide the majority of their exposure to lead. This result was a surprise for me. EPA used data from the Food and Drug Administration’s (FDA) Total Diet Study collected from 2007 to 2013 coupled with food consumption data from the National Health and Nutrition Examination Survey collected from 2005 to 2011. In August 2016, FDA reported on levels of lead (and cadmium in food) commonly eaten by infants and toddlers based on a data set that is different from its Total Diet Study. FDA concluded that these levels, “on average, are relatively low and are not likely to cause a human health concern.”
  • For all children, air pollution appears to be a minor source of lead exposure. We think it is most likely because exposure is localized around small airports and industrial sources.

For a visual look at the data, we extracted two charts from the draft EPA report (page 81) that show the relative contribution of the four sources of lead for infants (0-6 month-olds) and toddlers (1 to <2 year-olds) considered by the agency. The charts represent national exposure distributions and not specific geographical areas or age of housing.

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Posted in Drinking Water, Emerging Science, EPA, FDA, Food, Health Policy, lead| Also tagged , , , , , | Comments are closed

People deserve to know if lead pipes and paint are present where they live and work

Tom Neltner, J.D.is the Chemicals Policy Director

We live in an increasingly transparent world. When it comes to the real estate market, companies are mining local government databases to let us know the size of a home, how much it’s worth, and even when the roof was last replaced.

Yet, you can’t find out if the house you might buy could poison your children with toxic lead. Federal law only requires that the seller or landlord reveal the presence of lead paint when you sign a contract to buy or rent a home.

We think that has to change.

People should be able to readily know if lead is present in the paint and water pipes where they live and work when they begin making important decisions, not when they are finalizing the deal. When shopping for a place to live, the best time to learn if there is lead at a property is when it is listed for sale or rent. Some opponents claim that revealing this information invades the resident’s privacy, but the presence of lead is not about anyone’s behavior. Rather, it’s a fact about the house, a legacy of the construction of the building. It is no different from the type of furnace or number of bedrooms.

There are signs of progress. In Washington, DC, the water utility has launched an online map that reveals information that can help improve transparency on lead pipes. Anyone can check online and see what’s known (and not known) about the presence of lead service lines that connect the drinking water main under the street to their home or business.

It’s a model other communities should follow. The U.S. Environmental Protection Agency has made this type of transparency a priority for states and utilities. And the private sector needs to play a role, too — real estate innovators like Zillow and Redfin, who have transformed how we find homes, should include this information in their online listings.

It’s time that people begin to know the possible health impacts of their housing options when evaluating homes to buy or rent.

Posted in Drinking Water, EPA, Flint, lead, Markets and Retail, Regulation, Uncategorized| Also tagged , , , , , , , | Comments are closed
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