A new report on air quality across the United States offered a cloudy prognosis on the long-term health of about 156 million residents who live in areas that received an "F" in smog and soot pollution ...

Data: American Lung Association; Note: Days where air pollution was worse received a greater weighting in the calculation; Chart: Alex Fitzpatrick/Axios Houston continues to be one of the most ...

Lahore [Pakistan]: Lahore has ranked as the world's most polluted city for the past three days, with air quality plummeting to hazardous levels as smog blanketed the city and the overall Air Quality ...

SARAJEVO (Reuters) - A blanket of fog and smog descended on the Bosnian capital of Sarajevo this week, reducing daytime visibility to a few dozen metres and forcing residents indoors as pollution ...

NEW DELHI – After Diwali celebrations filled the skies with firecrackers and festive smoke, the Commission for Air Quality Management on October 21 reported an alarming deterioration in air quality ...