Urban outdoor furniture faces constant exposure to harsh environmental pollutants that accelerate material degradation. Key common pollutants include acid rain, formed from sulfur dioxide (SO₂) and nitrogen oxides (NOₓ) in the atmosphere, which erodes metals and finishes. Industrial emissions release corrosive chemicals like chlorides and sulfates, particularly damaging in coastal or manufacturing-heavy areas. Vehicle exhaust contributes carbon monoxide and hydrocarbons, leading to surface oxidation. Bird droppings contain uric acid that stains and corrodes materials. Additionally, ozone and UV radiation cause polymer breakdown in plastics and coatings. To ensure durability, materials must resist these factors through coatings, alloys like stainless steel, or composites designed for chemical resistance. Regular maintenance and material selection are critical for longevity in urban settings.
Which common pollutants should the material chemical corrosion resistance of urban outdoor furniture cope with?
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