polychlorinated

简明释义

英[ˌpɒlɪˈklɔːrɪneɪtɪd]美[ˌpɑlɪˈklɔrɪneɪtɪd]

多氯化的

英英释义

单词用法

同义词

反义词

例句

1.PCB (polychlorinated biphenyl) : Any of a class of highly stable organic compounds prepared by the reaction of chlorine with biphenyl, a two-ring compound.

多氯联苯：任何一种由氯与联苯反应生成的非常稳定的二环有机化合物。

2.PCBs (Polychlorinated Biphenyls).

多氯联苯(聚氯化联苯)。

3.12 kinds of dioxin-like polychlorinated biphenyls(PCBs)in soil were determined by accelerated solvent extraction(ASE)and gas chromatography method.

采用加速溶剂萃取（ASE）—气相色谱法测定土壤中的12种类二恶英多氯联苯。

4.Ink contains toxic substances called polychlorinated biphenyls, and its chemical structure similar with the pesticide.

油墨中含有一种叫做多氯联苯的有毒物质，它的化学结构跟农药差不多。

5.The pretreatment of food samples is a crucial procedure for determination of polychlorinated biphenyls in them. Several new pretreatment methods have been developed during recent years.

样品前处理是食品中多氯联苯分析的关键步骤，近几年在食品中多氯联苯的提取、净化和分离方面出现了一些新技术。

6.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。

7.Regulations have been put in place to limit the use of polychlorinated 多氯化 chemicals in manufacturing.

已经制定了法规以限制在制造中使用多氯化化学品（polychlorinated）。

8.Studies show that polychlorinated 多氯化 pollutants can accumulate in the food chain.

研究表明，多氯化污染物（polychlorinated）可以在食物链中积累。

9.Manufacturers are being urged to eliminate polychlorinated 多氯化 compounds from their products.

制造商被敦促从其产品中消除多氯化化合物（polychlorinated）。

10.The cleanup process involves removing polychlorinated 多氯化 substances from contaminated sites.

清理过程涉及从受污染地点移除多氯化物质（polychlorinated）。

11.The environmental agency issued a report on the dangers of polychlorinated 多氯化 biphenyls in the river.

环境机构发布了一份关于河流中多氯化双苯基（polychlorinated）危险的报告。

作文

Polychlorinated compounds are a group of chemical substances that have been widely studied due to their environmental and health impacts. One of the most well-known examples of these compounds is polychlorinated biphenyls (PCBs), which were commonly used in electrical equipment, paints, and other industrial applications until their ban in many countries due to their toxic effects. The term polychlorinated refers to the presence of multiple chlorine atoms attached to a benzene ring, resulting in a compound that is both stable and persistent in the environment. This stability means that these substances can remain in soil and water for many years, posing risks to wildlife and human health. Research has shown that exposure to polychlorinated compounds can lead to various health issues, including cancer, immune system suppression, and developmental problems in children. These compounds accumulate in the fatty tissues of living organisms, leading to bioaccumulation and biomagnification in the food chain. For instance, fish in contaminated waters can have high levels of PCBs, which can be transferred to humans when consumed. The persistence and toxicity of polychlorinated compounds have led to stringent regulations regarding their use and disposal. Many countries have implemented programs to clean up contaminated sites, monitor environmental levels of these substances, and educate the public about their dangers. However, despite these efforts, polychlorinated compounds continue to be a concern, as they can still be found in older equipment and products that have not been properly disposed of. In addition to PCBs, there are other types of polychlorinated compounds, such as dioxins and furans, which are byproducts of various industrial processes and are also highly toxic. The release of these substances into the environment can occur through waste incineration, chemical manufacturing, and even natural events like forest fires. Therefore, understanding the sources and effects of polychlorinated compounds is crucial for developing effective strategies to mitigate their impact on both human health and the environment. Public awareness and education play vital roles in addressing the challenges posed by polychlorinated compounds. By informing communities about the risks associated with these substances and promoting safe practices, we can reduce exposure and protect vulnerable populations. Furthermore, ongoing research is essential to develop safer alternatives to polychlorinated compounds and to improve methods for monitoring and cleaning up contaminated sites. In conclusion, polychlorinated compounds represent a significant environmental and health challenge that requires coordinated efforts from governments, scientists, and the public. By understanding their properties, sources, and effects, we can work towards a safer and healthier future, free from the dangers posed by these persistent chemicals.

多氯化化合物是一类因其对环境和健康影响而受到广泛研究的化学物质。其中最著名的例子是多氯联苯（PCBs），它们曾广泛用于电气设备、涂料和其他工业应用，直到由于其毒性效应在许多国家被禁止。术语polychlorinated指的是多个氯原子附着在苯环上的存在，导致一种在环境中既稳定又持久的化合物。这种稳定性意味着这些物质可以在土壤和水中保持多年，对野生动物和人类健康构成风险。研究表明，接触polychlorinated化合物可能导致各种健康问题，包括癌症、免疫系统抑制和儿童发育问题。这些化合物在生物体的脂肪组织中积累，导致食物链中的生物累积和生物放大。例如，在受污染水域中的鱼类可能含有高水平的PCBs，当人类食用时，这些物质可能被转移到人类体内。由于polychlorinated化合物的持久性和毒性，许多国家已实施严格的法规，涉及其使用和处置。许多国家已经实施了清理受污染地点、监测这些物质的环境水平以及教育公众有关其危险的计划。然而，尽管有这些努力，polychlorinated化合物仍然是一个关注的问题，因为它们仍然可以在未妥善处置的旧设备和产品中找到。除了PCBs，还有其他类型的polychlorinated化合物，如二恶英和呋喃，它们是各种工业过程的副产品，也具有高度毒性。这些物质释放到环境中的途径包括废物焚烧、化学制造，甚至自然事件如森林火灾。因此，了解polychlorinated化合物的来源和影响对于制定有效的策略以减轻对人类健康和环境的影响至关重要。公众意识和教育在解决polychlorinated化合物带来的挑战中发挥着至关重要的作用。通过告知社区这些物质相关的风险并促进安全实践，我们可以减少接触并保护脆弱的人群。此外，持续的研究对于开发安全的替代品和改善受污染地点的监测和清理方法至关重要。总之，polychlorinated化合物代表了一个重大的环境和健康挑战，需要政府、科学家和公众的协调努力。通过理解它们的特性、来源和影响，我们可以朝着一个更安全、更健康的未来迈进，远离这些持久化学物质所带来的危险。