“The Environmental Protection Agency has acknowledged that a controversial pesticide used to kill mosquitoes in Massachusetts contains toxic chemicals that leach into the product from its container, and the manufacturer has agreed to change its packaging, officials said Thursday. ...

“For two decades, state environmental officials have used a controversial pesticide to kill mosquitoes in Massachusetts, spraying millions of acres from the air and ground to reduce the spread of Eastern equine encephalitis. Now, after years of criticism from environmental advocates ...

“After years of research showing the dangers of so-called forever chemicals, state regulators Thursday joined a growing number of their counterparts in other states in issuing significant new limits on the human-made compounds in drinking water, a move hailed by environmental ...

“As the state ramps up its response to what officials fear could be another dangerous summer for eastern equine encephalitis, environmental advocates are warning them to avoid relying on aerial spraying to reduce transmission of the deadly, mosquito-borne disease, an approach they ...

“The state Department of Environmental Protection has failed to send federal regulators reports about the safety of watersheds in Massachusetts, according to the state auditor. “DEP’s excuses don’t pass the straight-face test,” said Kyla Bennett, director of Public Employees ...