Study: subway air is heavily contaminated with hazardous pollutants

The Washington PostStudy finds subway air is heavily contaminated with hazardous pollutants.

A study found that subway air is heavily polluted, exposing transit workers and riders to high concentrations of hazardous metals and harmful pollutants.

Researchers from New York University’s Grossman School of Medicine say subway air could make passengers and transit workers more susceptible to long-term illnesses such as asthma, lung cancer and heart disease.

The study, funded by a National Institute of Environmental Health Sciences grant and published in the Environmental Health Perspectives journal on Wednesday, reviewed underground air at the largest transit systems in the Northeast, located in New York-New Jersey, D.C., Philadelphia and Boston. Each system showed concentrations of hazardous metals and organic toxins that ranged between two and seven times the amount in outdoor fresh air.

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