Ключевые слова: background, bad smell, bush, canal, canal in bangkok, ciememt, city, clean, construction, contamination, corrosion, dirt, dirty, drain, drainage, drains, dump, ecology, environment, flow, flowing, fluid, garbage, garden, grass, green, grey color, industrial, industry, liquid, natural, nature, old, outdoors, pipe, pipeline, pollution, river, sewage, sewer, stormwater, stream, swamp, technology, toxic, tube, waste, waste water, wastewater, water,