industrial plant spews clouds into gray sky

agency asthma atmosphere background bad billows black buildings cancer carbon carcinogens change chemical chutes climate climates clouds cloudy complex condensation cooling cylindrical dioxide energy environment environmental fog gases goods gray grey hazard hazards health ibeams iconic industrial industrialization industry manufacturing metal odiferous odor odors particulates plant pollutants power production protection scaffolding scrubbers skies sky smells smelly smog smoke smokestacks society spews steam steel sulfur temperatures towers tubes visibility walkways warming waste white