Ключевые слова: abstract, area, background, banner, brown, chemical, color, contamination, crude, damage, danger, digging, dirty, discharge, disposal, dry, dump, earth, ecology, environment, environmental, europe, ground, industrial, industry, iron, land, liquid, motion, natural, nature, nitrate, outdoor, outside, oxide, pattern, polluted, pollution, puddle, red, reed, salt, soil, spill, surface, toxic, waste, wastewater, water, white,