The UES has higher concentrations of many pollutants than neighborhoods known for bad air.
The problem stems from the number of large buildings in the area burning pollution-emitting fuel.
The mayor said his PlaNYC program has gotten thousands of buildings to burn cleaner heating oil.
A plan to burn Sandy debris has some environmental groups up in arms.
City Councilwoman Jessica Lappin is calling for the DEP to monitor air around the 2nd Ave. subway site.
A contractor checked construction workers' masks after OSHA found someone exposed to silica at the site.
Nearly 300 residents voiced concerns to city officials Monday about the E. 91st Street trash station.
As blasting and drilling winds down at 72nd Street, the Second Ave. subway gears up for 86th Street.
MTA air quality study says the Second Avenue subway construction is safe, but residents say they're ill.
An MTA air-quality study dismissed concerns that the 2nd Avenue subway is making residents sick.
The MTA resumed blasting for the Second Ave. subway Monday after a brief hiatus to find ways to cut dust.
New Yorkers told to avoid strenuous outdoor activity during week's heat wave.
Manhattan is under a smog alert until 11 p.m. Wednesday
Bill Clinton said he loved the pedestrian plaza in Times Square, which the city says has made the air cleaner.
The city-wide Department of Health survey found Manhattan to have the worst air quality of all the boroughs.
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