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长期呼吸PAHs污染的空气、饮用PAHs污染的水和或食用PAHs污染的食物，可引起PAHs慢性中毒，且可诱发多种癌症。（)
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更多“长期呼吸PAHs污染的空气、饮用PAHs污染的水和或食用PA…”相关的问题
A.气候温和地区的石油污染对环境的影响要比沙漠地区的大
B.石油污染和PAHs污染在气候温和地区要比在沙漠地区消散的快
C.石油污染和PAHs污染在沙漠地区要比在气候温和地区消散的快
D.和平时期，海湾的石油生产和运输致使高水平的PAHs和大规模的石油倾销
A.气候温和地区的石油污染对环境的影响要比沙漠地区的大
B.石油污染和PAHs污染在气候温和地区要比在沙漠地区消散的快
C.石油污染和PAHs污染在沙漠地区要比在气候温和地区消散的快
D.和平时期，海湾的石油生产和运输致使高水平的PAHs和大规模的石油倾销
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ADHD Linked to Air Pollutants
Children have an increased risk of attention problems, seen as early as grade school, if their morns inhaled (吸入) a certain type of air pollution when they were pregnant. That&39;s the finding of a new study. Released when things aren&39;t burned completely, this pollution is known as polycyclic aromatic hydrocarbons, or PAHs. The biggest sources of these PAHs: the burning of fossil fuels,wood and trash. Frederica Perera works at Columbia University&39;s Mailman School of Public Health in New York City. She researches how exposure to things in the environment affects children&39;s health. In a new study, she and her team studied the exposure to air pollution of 233 nonsmoking pregnant women in New York City. Because burning tobacco can spew (排放) PAHs into the air and lungs, Perera&39;s team focused on nonsmokers. The researchers wanted to probe (探查) other sources of PAHs, ones that would have been hard for an individual to avoid.＜br＞
The team started by testing the blood of each woman during pregnancy. The reason: Any PAHs in a woman&39;s blood would also be available to the baby in her womb. Nine years later, the researchers investigated signs of attention problems in these children, now age 9. They asked each child&39;s mother a series of questions. These included whether her child had problems doing things that needed sustained (长期的) mental effort, such as homework or games with friends. The scientists also asked if the kids had trouble following instructions or made frequent, careless mistakes. All of these can be symptoms of a disorder called Attention Deficit Hyperactivity Disorder, or ADHD. About one in 10 U.S. children has ADHD. Among the women studied, traffic and home heating were the primary sources of air pollution exposure, Perera and her team suspect.＜br＞
Some of these women had low levels of PAHs in their blood. Others had high levels. Those with high levels were five times as likely to have children who showed attention problems by age 9. The new findings were published on November 5 in the journal PLOS ONE
Perera and her team chose nonsmoking pregnant women all over America. 查看材料
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A．氰化物
B．金属镉
C．酚类化合物
D．砷化合物
E．硝基苯类化合物
2005年，全国发生环境纠纷5万起，对抗程度明显高于其他群体事件。一些地区由于植被破坏．水土流失，生态失衡，致使土地荒漠化越来越严重。当地农民被迫远走他乡，成为“生态灾民”。
这段文字主要说明了：
A.我国的环境污染已经相当严重，需要采取正确的措施治理
B.环境污染对城市公众身体健康的危害
C.环境污染严重影响了社会安定
D.我国的环境污染危害公众健康，引发了不同程度的社会问题
这段文字主要说明了：
A.我国的环境污染已经相当严重，需要采取正确的措施治理
B.环境污染对城市公众身体健康的危害
C.环境污染严重影响了社会安定
D.我国的环境污染危害公众健康，引发了不同程度的社会问题
