Stunning Levels Of Air Toxins Found In New York's Subway System
The air quality in the subway systems across the U.S. is almost downright toxic.
New research published last week shows high levels of pollution for subway riders, with the worst air quality coming from places like New York and New Jersey, according to The Guardian.
The report notes that tiny specks of pollution called PM2.5 were well above nationally determined safe daily levels of 35 micrograms per cubic meter in cities like New York, Washington and Philadelphia. The particles are likely "thrown up by train brakes or the friction between train wheels and rails".
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