The market for dust masks and air purifiers is booming in Beijing because the capital has been shrouded for several days in thick fog and haze .
近几日北京持续被浓重雾霾笼罩，市场上防尘口罩和空气净化器的销量剧增。
I think nobody will disagree ( that ) pollution is a by-product of industrialization.
污染是工业化的一个副产品，我想没人会不同意这看法的。
The annual average of the air pollution index ( API ) showed a decrease tendency in recent 3 years , and put forward the air pollution preventing and curing countermeasures .
空气污染指数（API）年平均值近三年间均有下降趋势，并针对空气污染提出了相应整改措施。
The Central Station ( CMS ) yesterday morning extended the warning of a strong cold spell and snowstorms by issuing an orange alert , the second-highest level .
中央气象台昨天上午发布了强冷空气和暴雪预警，将预警级别提高到了二级橙色预警级别。
Long-term exposure to airborne particulate matter reduces lung function and increases the risk of getting lung cancer .
长期暴露于空气中的浮粒污染物可引致浮粒滞留在肺中，并减低肺功能及增加肺癌的风险。
Nicotine is one of key factors related to tobacco quality and a toxic substance in environment , in fact , nicotine is the major harmful ingredient in wastewater and tobacco waste .
尼古丁是影响烟叶品质的重要因素之一，也是一种环境有毒物质，是烟草工业废水和烟草废弃物中的主要有害成分。
All large and medium-sized Chinese cities will have greater air quality monitoring by 2010 .
截止到2010年前，我国所有大、中城市的空气质量监督机制将会再迈上一个台阶。
City dwellers inhale foul air .
城市居民吸进污浊的空气。
It reported that heavy fog and low visibility were prolonging the encounter .
报导说，大雾和能见度很低延长了这次冲突的时间。
Gasoline service stations and motor vehicle exhaust also release benzene .
汽油加油站和机动车的尾气也释放苯。
A huge number of flights have been delayed or cancelled , nearly three hundred in Beijing alone , leaving thousands of passengers stranded .
许多航班已经被延迟或取消，单单在北京就有近300班，数千名乘客滞留。
On the other hand , a host of newly-built factories continue to discharge harmful gases and liquids , which seriously pollute the environment .
另一方面，许多新建的工厂继续排放严重污染环境的有害气体和液体。
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