日常摄入的水、食物和各类能量与输出的污水、固体废物、空气污染物、能源和经过某种转化的物质相匹配。
A daily input of water, food, and energy of various kinds is matched by an output of sewage, solid waste, air pollutants, energy, and materials that have been transformed in some way.
这些污染物被称为气溶胶，它们包括煤烟以及空气中氮、硫和其他物质的混合物。
These pollutants are called aerosols and they include soot as well as compounds of nitrogen and sulfur and other stuff into the air.
《清洁空气法》授权美国环保局监管有害污染物，如微粒物质和臭氧。
The Clean Air Act mandates the EPA to regulate harmful pollutants such as particulate matter and ozone.
根据迄今报告的数据，放射性碘是主要污染物，而且一些食物样本中检测到的放射性物质已经超过日本规定的水平。
According to data reported so far, radioactive iodine is the main contaminant and concentrations in some food samples have been detected at levels above the Japanese regulatory limits.
通过释放各种污染物以及水蒸气至机库中，该创意旨在测试这些物质对大气窗口的影响。
The idea is to test the effects on the atmospheric window of various pollutants, and also of water vapour, by releasing them into the building.
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。
PCBs and HCB are both long-lived pollutants that accumulate in food chains and take decades to break down.
即便如此，天然气仍然以有毒物质少、颗粒污染物少的特征而具备显著的环境优势。
Even accounting for the new analysis, natural gas-which also emits less toxic and particulate pollution-offers a significant environmental advantage.
研究这些物质是非常重要的，卡斯蒂格利奥尼说：“因为这是些未知的污染物，尤其是药物，已经大量存在了。”
Researching these substances is important, Castiglioni said, "because [these] are quite unknown contaminants, and they are present in the environment in huge amounts, especially for pharmaceuticals."
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。
At the same time, plastics absorb pollutants including PCBs (polychlorinated biphenyls) and pesticides, bringing poisons into the food chain.
它们已成为我们现代社会日常生活的组成部分，化学物质存在于杀虫剂、污染物和各类工业废弃物中。
They have become an every day part of our modern day world. Chemicals are present in pesticides, pollution and all kinds of industrial waste.
这次考察航程最初的目的是测量持久性有机污染物之类的化学物质，而对金属的研究是一个后即想法。
The original objective of the voyage was to measure chemicals known as persistent organic pollutants, and the study of metals was an afterthought.
污染物质的来源广泛，包括农业、工厂排放物、消费产品、城市河道和污水处理工厂。
The pollutants derive from a wealth of sources, including agriculture, factory discharges, consumer products, urban runoff and wastewater treatment plants.
他们注意到，这个法案中提到，环保局应当监控所有的空气污染物，而空气污染物可以合理的诠释成威胁到公众的健康或幸福感的物质。
The act, they note, says the EPA should regulate any air pollutant that "may reasonably be interpreted to endanger public health or welfare".
例如，过去，劝说美国企业限制使用有害化学物质和排放污染物，是极为困难的。
For example, it had proved extremely difficult to persuade American businesses to cut down on the use of harmful chemicals and their release into the environment.
并且会导致空气中污染物不易扩散，增强有害物质的毒性，严重的，还可能会导致毒雾发生。
And can lead to air pollutants is not easy to spread, enhanced the toxicity of harmful substances, serious, may also cause smog.
每年，我们“发明”出2,000多种新物质，大多数都是污染物，它们被排放到环境中，然后出现在食物、空气、水当中。
Every year, we "invent" more than 2,000 new substances, most of them contaminants, which are emitted into the environment and which are consequently present in food, air, soil and water.
巴雷斯特罗斯博士说： “我们相信新的方法将有助于提供一个更有效的方式来确定在牛奶和其他物质中这些污染物的存在。”
Dr Ballesteros said: 'We believe the new methodology will help to provide a more effective way of determining the presence of these kinds of contaminants in milk or other products.
尽管一些物质可能来自一些公司试用的自来水中，但是其他的污染物可能来自塑料瓶，一些研究者说。
Though some probably came from tap water that some companies use for their bottled water, other contaminants probably leached from plastic bottles, the researchers said.
Saido博士说，从太平洋搜集的海水样本的污染物浓度高达百万分之一百五，污染物多是塑料垃圾的分解物质。
Dr Saido said that samples of seawater collected from the Pacific Ocean were found to be contaminated with up to 150 parts per million of some of these components of plastic decomposition.
商用水处理系统，用来去除水中的矿物质和污染物。
Commercial water treatment systems work to remove minerals and pollutants from water.
提议的新标准首先明确地说明致病微生物、食品添加剂、重金属、农药残留物和其它污染物质可接受的范围。
The proposed new code will initially, as a priority, spell out acceptable levels of pathogenic microorganisms, food additives, heavy metals, pesticide residues and other pollutants.
为研究野外放射性污染物受雨、雪淋洗的程度，进行了模拟物的淋洗实验，结果初步表明有相当一部分放射性物质被淋出。
Leaching experiment with simulative material was carried out in order to study the leaching degree of field radioactive pollutant by rainwater and snow.
微生物是天然水环境中重要的固相物质，它有较高的表面反应活性和较大的表面积，对水体许多种污染物都具有吸附或富集作用。
Due to the high surface reactivity and large surface areas, microorganism in natural water is the important solid phase and is able to adsorb and enrich all kinds of pollutants.
自然界中的许多矿物自身赋有容纳和稳定有害物质的自净化能力，可用于重金属类污染物的治理。
Many minerals in nature have the self-purification capacity to hold and stabilize deleterious contaminant, which can be used to deal with heavy metal contaminants.
自然界中的许多矿物自身赋有容纳和稳定有害物质的自净化能力，可用于重金属类污染物的治理。
Many minerals in nature have the self-purification capacity to hold and stabilize deleterious contaminant, which can be used to deal with heavy metal contaminants.
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