by Steve Milloy, E&E Legal Senior Policy Fellow and Founder
As appearing on

A new study reports on PM2.5 (soot/dust) levels in subway stations. The New York City and New Jersey PATH system had a mean level of 779 micrograms per cubic meter — 65 times higher than the EPA’s outdoor air standard of 12 micrograms per cubic meter. The highest level measured (1,499 micrograms per cubic meter) is almost 50% higher than the worst air in any Chinese city that we know about. Onboard air quality PM2.5 measurements were lower but still on average 30 times higher than EPA standards. In 2018, PATH carried 81.7 million passengers, about 280,000 per week day. Keeping in mind that the EPA says that any exposure to PM2.5 can kill you within hours, where are the bodies? Why aren’t governments calling for an immediate shutdown of subway service?

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