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对现代工业高度发达带来的负面影响预料不够,预防不利,导致了全球性的三大危机:资源短缺、环境污染、生态破坏。人类不断地向环境排放污染物质,但由于大气、水、土壤等的扩散、稀释、氧化还原、生物降解等的作用,污染物质的浓度和毒性会自然降低,这种现象叫做环境自净。如果排放的物质超过了环境的自净能力,环境质量就会发生不良变化,危害人类健康和生存,这就发生了环境污染。
The negative impact brought about by the highly developed modern industry is not expected to be adversely affected and has led to the three major global crises: shortage of resources, environmental pollution and ecological damage. Human beings continue to emit pollutants to the environment, but due to the proliferation of atmospheric, water, soil, dilution, redox, biodegradation, etc., the concentration and toxicity of pollutants will naturally be reduced, a phenomenon called environmental self-purification. If the discharged substance exceeds the self-purification capacity of the environment, environmental quality will undergo adverse changes, endangering human health and survival, thus causing environmental pollution.