According to the United States Environmental Protection Agency, radon is the second most frequent cause of lung cancer, after cigarette smoking, causing 21, 000 lung cancer deaths per year in the United States.

According to the United States Environmental Protection Agency ( EPA ), biosolids that meet treatment and pollutant content criteria of Part 503. 13 " can be safely recycled and applied as fertilizer to sustainably improve and maintain productive soils and stimulate plant growth.

According to the United States Environmental Protection Agency ( EPA ), a passenger car is classified as subcompact if it has between and of interior volume.

According to the United States Environmental Protection Agency ( EPA ), the six most prominent examples of environmental hazards include the following:

According to the United States Environmental Protection Agency ( EPA ), all sales of textiles containing pesticides as an ingredient must be properly labeled according to the United States labeling requirements and must be approved for sale by the EPA.

According to the United States Environmental Protection Agency, mixed waste ( MW ) is a waste type defined as follows ; " MW contains both hazardous waste ( as defined by RCRA and its amendments ) and radioactive waste ( as defined by AEA and its amendments ).

According to the United States Environmental Protection Agency, the Sawtooth Wilderness has some of the clearest air in the lower 48 states.

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