Cigarette fumes contain more than 60 chemicals, including arsenic and benzene that encourage tumor.

香烟烟雾中今有60多种化学物质，其中包括砷和苯，这都会导致肿瘤的产生。

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Coal ash contains toxic heavy metals, including arsenic, cadmium, mercury and lead, which leach into water systems and get blown into the air during windy days.

煤灰含有有毒的重金属，包括砷、镉、水银和铅，这些会从供水系统中过滤处理，在有风的时候吹到空中。

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Coal ash is known to contain dangerous elements including arsenic, lead, and selenium, yet the TVA refused at first to issue any health warnings about contamination from the spill.

煤灰渣含有多种危险物质，包括砷、铅、硒等，然而田纳西流域管理局起先矢口否认煤灰渣中含有对健康有害的物质。

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Delhi draws three-quarters of its drinking water from the Yamuna river, into which the city dumps quantities of sewage, almost all of it untreated, to join a cocktail of farm chemicals and industrial effluents, including arsenic.

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The FSA says it tested almost 80, 000 samples of food last year and focuses "on those risks that can make people ill or worse" including looking for arsenic and listeria.

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He said second-hand smoke contained more than 4, 000 chemicals, including benzene, formaldehyde, arsenic, ammonia and hydrogen cyanide.

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