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Environmental pollution. Air pollution. Car exhaust gas,smoke,smog.Vehicle emissions. Smoke coming from transport vehicles exhaust into air through the exhaust pipe.Flat vector illustration. Isolated
DANGER: NO SMOKING - FUMES ZONE - Inhalation and Fire Hazard Warning Sign for Chemical Areas
Metal workers use manual labor, Skilled welder, Factory workers making OT, The welder is welding the steel in the factory, Welding fumes, The welder stands to weld the iron in the dark
White smoke from cooking pot on stove in countryside kitchen and blurred black background. soft picture
Welding fumes can cause serious health problems for workers, if inhaled Prolonged exposure to welding fumes can cause lung cancer.

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