本文综述了化学致癌剂及化学致癌机理的近代研究状况。
The recent situation for the researches on chemical carcinogens and on the mechanism of chemical carcinogenesis is reviewed in this paper.
化学致癌过程是涉及启动、促进和进展等多阶段的复杂过程。
Chemical carcinogenesis is involved in complicated multiple stages of initiation, promotion and progression.
在培养内化学致癌已证明是一个比致癌困难得多的研究领域。
Chemical carcinogenesis in culture has proved to be a much more difficult field of investigation than viral carcinogenesis.
大多数化学致癌物均可影响DNA、RNA和蛋白质合成的过程。
It was known that most chemical carcinogens could interfere with the synthesis of DNA, RNA and protein.
根据这个协议，致癌化学物的释放将被削减80％左右。
Under the agreement, releases of cancer-causing chemicals will be cut by about 80 percent.
一种使大鼠和小鼠致癌的化学物质，后来发现可减少人类某些癌症的大小，数年后该作用又被证明无效。
A chemical found to cause cancer in rats and mice was later found to reduce the size of some cancers in humans, years after it had been deemed useless.
—深色染发剂：已被证明含有致癌化学物质煤焦油。
Dark hair dyes: They are known to contain coal tar, a carcinogenic chemical.
该州水污染十分严重，在排放引起出生病变方面的致癌毒素，水污染和化学物质方面倒数第五。
The state rates horribly in water pollution, falling into the bottom five for releasing carcinogenic toxins, total water pollution, and chemicals which can cause birth defects.
研究对象的香烟中添加了一种多环芳烃化合物，该物质进入人体后被转化为另一种破坏dna的致癌化学物质。
A PAH was added to the subject's cigarettes, which was then modified by the body and turned into another chemical which damages DNA and has been linked with cancer.
据知，化学物质镉是一种致癌物质。跟铅类似，镉在人非常小的时候会阻碍大脑的发育。
Cadmium is a known carcinogen and is similar to lead in that it can hinder brain development in the very young.
该研究中涉及到许多化学物质，其中有一些已经被归类为可致癌物质。
Of the numerous chemicals identified in the study, some are classified as probable carcinogens.
可再生柴油中不含汽油中通常含有的有害化合物，包括燃烧后在大气中生成致癌物的化学品。
The harmful compounds in petroleum absent from renewable diesel include benzene which becomes an airborne carcinogen when burned.
新衣服有时会散发一种特殊的味道，这种味道来自衣服防皱处理时残留的致癌性化学药品甲醛，因此必须用食盐水浸泡后洗一洗再穿，食盐能消毒、杀菌、防棉布褪色。
Sometimes new clothes come with a peculiar smell. This smell comes from formaldehyde, which is used for resisting creases.
目标很简单：检验出他们产品中是否含有最近在一些高能量饮料中发现的致癌化学物品。
The aim is simple: to find out if their products contain the cancer causing chemical recently found in some high energy drinks.
管理方法多样，简单的从使用骨炭吸收致癌物，然后把骨碳当作有毒废物扔掉，到高级的使用化学方法把六价铬转化成更良性的结构。
Management tactics range from using bone charcoal to soak up the carcinogen and then dispose of it as toxic waste to chemically transforming hexavalent chromium to a more benign form.
科学家们主要搞不懂的是，手机所释放的无线电波，连打断化学键或扰乱dna的冲击力都没有，又怎么可能导致癌症呢？
Scientists are mostly stumped as to how the radio frequency waves emitted by cellphones, which lack the punch to break chemical bonds or disrupt DNA, might cause cancer.
但是，当进食动物蛋白时，这种防御机制就会转而和我们作对，将这些化学物质转变成致癌物。
However, when animal-based protein is eaten, this defense mechanism turns against us and converts these chemicals into carcinogen.
致癌的铬：世界上很多地方通过铬把兽皮制成皮革，铬在六价化学结构下是强烈致癌物。
CARCINOGENIC chromium: Turning hides into leather in much of the world requires chromium, which in its hexavalent chemical form is a potent carcinogen.
大约有半数的一次性餐具是不安全的，其制作材料中含有超标的可致癌化学品。
About half of the disposable dishware used in the country is unsafe, with excessive amounts of chemicals that can cause cancer.
化学疗法也许能有效地杀死整个肿瘤，但是癌症干细胞可能会躲开药物，在几年后导致癌症的复发。
Chemotherapy might effectively kill an entire tumor, but cancer stem cells might evade the drugs and cause a relapse of the cancer years later.
香烟不仅仅含有致癌的化学物质，同时破坏肺天然的保护系统。
Cigarettes are not only packed with cancer-causing chemicals - they also disarm the lungs' natural defense system.
当你好心的妈妈给你发送电子邮件，告诉你SLS导致癌症，或者丙二醇导致大脑损伤，即使最吹毛求疵的化学家也会紧张。
When your well-meaning mom sends you an email telling you that SLS causes cancer or Propylene Glycol causes brain damage, it can make even the most caviler chemist nervous.
研究者称氯处理过的水的副产品三卤甲烷（THM)，是一种致癌化学物，会增加患疾病风险。
Researchers say cancer-causing chemicals called trihalomethanes (THM) are created as a byproduct of chlorinating water and increase the risk of the disease developing.
烟草烟雾中有4000多种化学物质，其中至少250种已知是有害的，50多种已知会导致癌症。
There are more than 4000 chemicals in tobacco smoke, of which at least 250 are known to be harmful and more than 50 are known to cause cancer.
他们希望能够找出致癌的潜在病因，可喜的是他们已经找出了化学上致癌的罪魁祸首之一。
They wanted to look for specific underlying causes of cancer, and they found their culprits in chemistry.
吸烟之所以危害健康是因为烟草中含有多种损害健康的化学物质，包括60来种致癌物质、烟碱、砷、一氧化碳和尼古丁。
Tobacco smoke is hazardous because it contains a number of unhealthy chemicals, including some 60 carcinogens (cancer-causing agents), tar, arsenic, carbon monoxide and nicotine.
据美国疾控中心的一项研究表明，防晒霜中的某些化学物质一旦被皮肤吸收就会成为致癌因子。
Some ingredients found in sunscreens like oxybenzone are designed to protect the skin but may lead to cancer, according to a study by the US Center for Disease Control.
这种被广泛使用的塑料通常含有一些有害的化学物质，包括一些已知的致癌物质，像氯乙烯、“戴奥辛”、邻苯二甲酸类物质，它们都和哮喘、过敏症和生殖问题息息相关。
This widely used plastic often contains harmful chemicals, including such known carcinogens as vinyl chloride, dioxin, and phthalates, which are linked to asthma, allergies, and reproductive problems.
为了生产出炸薯条，必须把它们加热到很高的温度，这会放出一些化学物质如acrylimide. Acrylimide是一种致癌介质，它同样会引起神经损伤。
In order to make French fries, they must be cooked at high temperatures which cause the chemical, acrylimide to be released. Acrylimides are a known cancer causing agent that also causes nerve damage.
为了生产出炸薯条，必须把它们加热到很高的温度，这会放出一些化学物质如acrylimide. Acrylimide是一种致癌介质，它同样会引起神经损伤。
In order to make French fries, they must be cooked at high temperatures which cause the chemical, acrylimide to be released. Acrylimides are a known cancer causing agent that also causes nerve damage.
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