Among the cities which exceed standard of the air quality, 68% of them exist the problems of inhalable particulates pollution.
我国空气质量超标的城市中，68%都存在可吸入颗粒物污染的问题。
Some research achievements have indicted already: inhalable particulates in the atmosphere have important influence on human health and ecological environment.
已有研究成果表明，大气中的可吸入颗粒物对人体健康和生态环境有很大的影响。
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