首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
In 1967, in response to widespread public concern aroused by medical reports of asbestos related deaths, the National Medical Re
In 1967, in response to widespread public concern aroused by medical reports of asbestos related deaths, the National Medical Re
admin
2013-03-23
47
问题
In 1967, in response to widespread public concern aroused by medical reports of asbestos related deaths, the National Medical Research Council organized a committee of enquiry to investigate the health threats associated with the use of asbestos in the building industry.
After examining evidences provided by medical researchers and building workers and management, the Council published a report, which included advices for dealing with asbestos. The report confirmed the findings of similar re- search in the United States and Canada. Exposure to relatively small quantities of asbestos fibers, they concluded, was directly responsible for the development of cancers, asbestosis and related diseases. Taking into account evidence pro- vided by economists and building industry management, however, the report assumed that despite the availability of other materials, asbestos would continue to play a major role in the British building industry for many years to come because of its availability and low cost.
As a result, the council gave a series of recommendations, which were intended to reduce the risks to those who might be exposed to asbestos in working environments. They recommended that, where possible, asbestos free materials should be employed. In cases where asbestos was employed, it was recommended that it should be used in such a way that loose fibers were less likely to enter the air. The report recommended that special care should be taken during work in environments which contain asbestos. Workers should wear protective equipment and take special care to remove dust from the environment and clothing with the use of vacuum cleaner.
The report identified five factors which determine the level of risk involved. The state and type of asbestos is critical to determining the risk factors. In addition, dust formation was found to be limited where the asbestos was used when wet rather than dry.
The choice of tools was also found to affect the quantities of asbestos particles that enter the air. Machine tools produce greater quantifies of dust than hand tools and, where possible, the use of the latter was recommended.
A critical factor takes place in risk reduction is the adequate ventilation of the working environment. When work takes place in an enclosed space, more asbestos particles circulate and it was therefore recommended that natural or machine ventilation should be used. By closely following these advices, it was claimed that exposure can be reduced to a reasonably practical minimum.
According to the passage, which of the following factors could influence dust formation?
选项
A、humidity of asbestos that is used
B、the state and type of asbestos
C、ways people use asbestos
D、weather
答案
A
解析
第四段可以直接找到答案。
转载请注明原文地址:https://kaotiyun.com/show/WYhK777K
0
专业英语四级
相关试题推荐
Asmostschoolsaresetuptoday,learningiscompulsory.Itisanought,evenworse,amust,【C1】______byregularhoursandrig
Streetsellers,particularlyindevelopingcountries,【C1】______largeamountsoffoodtopeople【C2】______lowincomes.Thissector
Streetsellers,particularlyindevelopingcountries,【C1】______largeamountsoffoodtopeople【C2】______lowincomes.Thissector
It’sanindustrybuiltpurely【C1】______image,buttheactors,actressesandsingerswhoturntoitforhelpliketokeepita【C2
Seventy-four-year-oldsarethemost【C1】______peopleinthepopulation,accordingtoanewresearch.Fewerresponsibilities,fina
Theadditional2billiondollarswillmainlybeusedto______.
Withinthatexclusivegroupofliterarycharacterswhohavesurvivedthroughthecenturies—fromHamlettoHuckleberryFinn—fewc
TheInternet,E-commerceandglobalizationaremakinganeweconomicerapossible.Inthefuture,capitalistmarketswilllargel
Languageswillcontinuetodiverge.EvenifEnglishweretobecometheuniversallanguage,itwouldstilltakemanydifferentfo
随机试题
Americanshaveasenseofspace,notofplace.GotoanAmericanhomeoutsidethecity,andalmostthefirstthingyoudoisdri
女,23岁,两下肢感觉麻木,结合图像,最可能的诊断是
A.连续3次或以上快而规则的房性或交界区性期前收缩B.心房内产生极快的冲动,心房内心肌纤维极不协调乱颤,心房丧失有效的收缩C.各种原因引起心脏冲动起源或冲动传导的异常,可引起心脏活动规律发生紊乱D.异位起搏点兴奋性增高,过早发出冲动引起的心脏搏动E
白色血栓常见于()。
用友报表系统中,报表的单元类型包括( )。
关于沃尔评分法,下列说法中正确的有( )。
下列选项中,不属于流转税税种的是()。
督察人员在现场督察中发现公安机关人民警察违法违纪的,可以采取的当场处置措施包括()
与阈限概念最吻合的测定方法是()。
HenryFord,thefamousU.S.inventorandcarmanufacturer,oncesaid,"ThebusinessofAmericaisbusiness."Bythishemeantth
最新回复
(
0
)