The amount of toxic chemicals released into the environment nationwide in 2010 increased 16 percent over the year before, reversing a downward trend in overall toxic releases since 2006, according to a report released Thursday by the Environmental Protection Agency.
The spike was driven largely by metal mining, but other sectors ”” including the chemical industry ”” also contributed to the rise in emissions, according to the new analysis from the annual federal Toxics Release Inventory.
Air releases of dioxin, which is linked to cancer as well as neurological and reproductive problems, rose 10 percent from 2009 to 2010, according to the report. Other releases, such as landfill disposal, increased 18 percent.
Dioxins are formed as a byproduct of some processes with intense heat, such as smelting and recycling metals. The 2010 increase stemmed largely from the hazardous-waste-management and mining industries, according to the EPA.
According to EPA officials, a handful of metal mining operations helped drive the overall increase in toxic emissions.