PCBs (Polychlorinated Biphenyls).
多氯联苯(聚氯化联苯)。
The concern is a common one, but studies have found that most of the widely available supplements contain little or no mercury, dioxins or PCBs.
这是令人共同担忧的问题，但研究发现，大多数的广泛使用的补充剂含有很少或根本没有汞、二恶英和多氯联苯的物质。
Many Marine species are overfished, and some have high levels of mercury and PCBs.
过度捕捞的很多海洋物种中，有许多含有高浓度的汞和多氯联苯。
Stegeman has been chronicling resistance to toxic PCBs and polycyclic aromatic hydrocarbons in another coastal species, a killifish.
斯蒂门记录有另一种对有毒的多氯联苯和多环芳烃有抵抗作用海岸物种，那是一种鳉鱼。
PCBs and HCB are both long-lived pollutants that accumulate in food chains and take decades to break down.
多氯联苯和六氯苯都是长期存在，并积累在食物链中的污染物，取缔这些物质需要长达数十年的时间。
Also, do not store water in plastic containers because the polychlorinated biphenyls (PCBs) can leach into the water.
也不要把水储存在塑料容器里因为多氯联苯会渗入到水中。
They also contain much higher levels of cancer causing dioxins and PCBs.
此外，它们还含有二氧(杂)芑和多氯联苯，大大增加了致癌风险。
In fact, studies have shown that more than 95 percent of Americans older than 12 still have detectable levels of PCBs in their blood.
事实上，研究表明超过95%的12岁以上的美国人血液中仍然检测出含有多氯联苯。
We know that plenty of toxic chemicals are harmful to developing brains—including lead, methylmercury, PCBs, organophosphate pesticides, flame retardants (PBDEs) and phthalates.
我们知道许多有毒化学物品对大脑的发育都有影响，这包括铅、甲基汞、多氯联苯、有机磷杀虫剂、阻燃剂和领苯二甲酸盐。
Fish, in particular, contain carcinogens (PCBs, DDT) and heavy metals (mercury, arsenic; lead, cadmium) that cannot be removed through cooking or freezing.
特别是鱼类，含有致癌物(多氯联苯，DDT)和重金属(汞，砷，铅，镉)，而且这些物质无法通过蒸煮或冷冻消除。
They include pesticides such as DDT and chemicals called PCBs used in electrical goods.
这其中包括了如ddt农药和电子产品中使用的一种称为“多氯联苯”的化学物质。
Known examples are Dioxins and PCBs (polychlorinated biphenyls).
已知实例为二恶英和多氯联苯。
The chemicals seeping out as temperatures rise include the pesticides DDT, lindane and chlordane as well as the industrial chemicals PCBs and the fungicide hexachlorobenzene (HCB).
伴随着气温升高而释放出来的化学物质包括DDT、林丹、氯丹这样的农药、工业化学物质多氯联苯(PCBs)以及杀菌剂六氯苯(HCB)。
At the same time, plastics absorb pollutants including PCBs (polychlorinated biphenyls) and pesticides, bringing poisons into the food chain.
同时塑料还吸收了污染物pcbs(多氯联苯)和各种农药，从而给食物链中带来有毒物质。
PCBs (Polychlorinated Biphenyls), once widely used for industrial purposes but outlawed as carcinogenic in 1976, can also be found in fish due to environmental contamination.
PCBs(多氯联苯)，一度广泛用于工业用途，但在1976年作为致癌物被取缔。
For these reasons, all fluorescent lighting ballasts which are not specifically labeled "no PCBs" must be suspected to contain PCBs.
基于这些原因，所有这些荧光灯镇流器没有明确标示“无多氯联苯”必须被怀疑含有多氯联苯。
Well, perhaps I'll add some covers for the buffer PCBs later, but for now I'm absolutely satisfied with the result.
好吧，也许我会添加一些包括多氯联苯的缓冲区后，但现在我非常满意的结果。
It should be assumed that any oil-filled electrical equipment (transformer or other electrical equipment) that ever contained PCBs will be regulated.
应该假设任何充油电气设备(变压器或其他电器设备)的不断含有多氯联苯将进行调整。
Widely used in plastics and electrical insulation, PCBs -polychlorinated biphenyls - take decades to break down.
大量使用在塑胶，及电气绝缘体上的多氯联苯，需要几十年才会被分解。
Before their manufacture was banned in 1979, PCBs were used widely in electrical equipment, including transformers.
在他们于1979年禁止生产，多氯联苯广泛应用于电力设备，包括变压器。
Also, some ballasts manufactured after 1978 contain PCBs or the carcinogenic chemical DEHP.
此外，一些1978年以后生产的镇流器多氯联苯或含有致癌化学DEHP的。
This can remove up to 50% of the PCBs.
这可以消除多达50%的多氯联苯。
Certain compounds, such as polychlorinated biphenyls, or PCBs, have been banned in the United States.
某些化合物，如多氯联苯或多氯联苯，已经被禁止在美国。
Conclusion: PCBs in the hair of infants with skin hemangioma is much higher.
结论：多氯联苯化合物在皮肤血管瘤患儿头发中的水平增高。
Port facilities construction and renovation contribute to surface and ground water contamination and air pollution from asbestos, lead-based paint, dust, sediments, PCBs and petroleum hydrocarbons.
港口设施的建设和改造，而造成地下水污染和对空气的污染是来自石棉、含铅的油漆、灰尘、沉淀物、多氯联苯、石油碳氢化合物等。
With widely used, more and more PCBs entered environment and accumulated there. The prevention of PCBs is specially important due to its toxicity and the difficulty of degradation .
随着多氯联苯的广泛使用，越来越多的多氯联苯进入环境，并在环境中积蓄下来。由于多氯联苯的难降解性和毒性，所以防治多氯联苯的污染尤为重要。
The stress in question is pollution by polychlorinated biphenyls (PCBs).
环境压力来自多氯联苯(PCB)污染。
How do mercury and PCBs end up in fish and the food supply?
汞和多氯联苯最终如何存在于鱼类和粮食中的呢？
Because they can negatively affect your health, the U. s. Environmental Protection Agency advises that kids younger than 15 years old avoid fish that contain high levels of mercury and PCBs.
它们会对你的健康产生非常不利的影响，美国环境保护署建议，年龄小于15岁的孩子避免吃含有高浓度的汞和多氯联苯的鱼类。
How common are PCBs in the environment?
常见的是如何在环境多氯联苯？
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