(2015·呼和浩特第一次调研)Many people may be surprised by the number of chemicals that they are exposed to through everyday household products.
In a study 25 women had their homes and bodies tested for 89 environmental pollutants—including pesticides(杀虫剂) and chemicals found in plastics and cleaning products. On average 20 chemicals were found on their bodies or in their homes.
Much is unknown about the possible health effects of chemicals in everyday household products. But certain chemicals—like phthalates (邻苯二甲酸盐) found in plastics—have been linked to potential health risks, including higher risks of certain cancers, though the evidence mainly comes from research on lab animals. Other household chemicals are known to harm the skin, eyes and airways—and may worsen asthma(哮喘). Many more chemicals found remain untested.
Chemicals likely come from a range of sources, so it is not always clear how to reduce people’s exposure, according to Dr Rebecca Altman, the lead researcher on the new study.
In the original study, she noted, women were given advice based on the particular chemicals they were exposed to—such as using fragrance, free washing liquid and personal-care products.
For the current study, Altman and her colleagues interviewed two dozen women who’d taken part in the previous study to see how they would react to information about their household chemical exposures. They found that the women were generally surprised at the range of chemicals found in their homes and bodies. They were also surprised that even some banned things were found.
With many questions about the health effects of household chemicals unanswered, some experts worry
that giving people information about their everyday exposures will cause unnecessary fear. However, the researchers found that the women in their study were typically not alarmed，and instead wanted “more rather than less”information on the issue.
1．Which of the following statements about chemicals in household products is TRUE?
A．It is uncertain what effects some chemicals have on health.
B．Long term exposure to them is certain to cause a deadly illness.
C．In the study it was found that certain chemicals can cause cancers.
D．Some of them have bad effects on health, while some have good effects.
2．The underlined word “airways”in Paragraph 3 most probably refers to ________．A．things that look like fine threads growing in the body
B．the passage running from your nose and throat to the lungs
C．the passage between rows of rooms in a building
D．the area just inside the front door of a building
3．Why is it not clear how to reduce exposure to chemicals?
A．Because all everyday products contain chemicals.
B．Because much is unknown about the sources.