"U.S. EPA's long-awaited study of formaldehyde's toxicity got panned today by a National Academy of Sciences' panel that sharply disagreed with the agency's conclusions and declared the effort in need of 'substantial revision.'"

"Critics say it's a chemical that could cause infertility or cancer, while others see it speeding the growth of super weeds and causing worrying changes to plants and soil. Backers say it is safe and has made a big contribution to food production."

"The Maine House of Representatives on Thursday overwhelmingly endorsed banning the chemical bisphenol-A from children's products such as sippy cups and baby bottles."

"Two years ago some University of South Florida researchers began studying the effects of the most widely used fungicide in the country to see if it might kill more than just fungus. Turns out it's also a pretty effective frog-icide."

"Echoing her housing commissioner, Baltimore Mayor Stephanie Rawlings-Blake said Monday that Baltimore's public housing authority has decided 'it is not possible' to pay lead-poisoning judgments that could one day exceed $800 million because the money is needed to improve living conditions for thousands of poor families."

"A new report is suggesting the air at many Quebec construction sites contains levels of asbestos at or above provincial norms, raising fresh questions about whether the substance can be handled safely in Canada."

""U.S. water utilities have known about the prevalence of a likely carcinogen in water sources for seven years and have failed to share that information with the public, according to an advocacy group, which released today a 2004 industry study of hexavalent chromium."

"The United Nations has suggested three pesticides and three industrial chemicals be put on a trade "watch list" because they can threaten human health and the environment, the U.N.'s Food and Agriculture Organization said on Friday."

Questions are mounting about the possible role of a new family of pesticides, the neonicotinoides, in the "colony collapse disorder" that is decimating commercial honeybees. Will EPA reconsider its approval of those pesticides?

"Average lead levels at [Chicago's] Perez Elementary School were at or above federal limits during three three-month periods in 2010, the data show."