The air in New York City is pretty damn polluted, to say the least. Despite legislation aimed at curbing airborne pollutants and greenhouse gases, the health of residents in cities across the country is regularly put at risk by ground-level ozone (read: smog), and New York is no exception.
A report published earlier this month from Environment America Research & Policy Center and the Frontier Group detailed just how bad air pollution is in the city. It shows that the tristate area had 92 days of "elevated smog pollution" in 2015, which is just seven days shy of the Washington metropolitan area for the most in the northeast. Granted, the smog in New York is a drop in the bucket compared to that of southern California—Los Angeles saw 213 days of heavy smog during 2015.
According to the report, ground-level ozone brings about a whole host of health risks, ranging from coughing to an inflammation that is like "a sunburn on the inside of the lungs."
So, if you'd like to try and prevent a good old-fashioned lung sunburn, maybe consider taking a walk instead of calling an Uber.