vtpoly:
When being outdoors is an occupational hazard
vtpoly:
Smiling while wading through the dingy air, Henan Province, China
vtpoly:
Ghastly air pollution grips Henan Province on Christmas Day, 2013
vtpoly:
A polluted Christmas Day at Anyang Normal University, China
vtpoly:
University students come and go in the dense air pollution
vtpoly:
Large buildings are barely visible through the pollution
vtpoly:
Bathed in air pollution, Henan Province, China
vtpoly:
Clear day vs. moderate air pollution, Henan Province China
vtpoly:
Clear day vs. moderately heavy air pollution, Henan Province, China
vtpoly:
Clear day vs. heavy air pollution, Henan Province, China
vtpoly:
Clear day vs. hazardous air pollution, Henan Province, China
vtpoly:
Clear day vs. moderately heavy air pollution, Henan Province, China
vtpoly:
Clear day vs. heavy air pollution, Henan Province, China
vtpoly:
Clear day vs. hazardous air pollution, Henan Province, China
vtpoly:
Clear day vs. heavy air pollution, Henan Province, China
vtpoly:
Clear day vs. toxic air pollution, Henan Province, China
vtpoly:
Air Pollution, Henan Province, China
vtpoly:
Anyang, China, severe air pollution
vtpoly:
Anyang, China, severe air pollution
vtpoly:
Anyang, China, severe air pollution
vtpoly:
Anyang, China, severe air pollution
