Soil may be contaminated by any number of toxins, from dog urine to gasoline or other chemicals.任意数量的毒素可能被污染土壤，从狗尿，汽油或其他化学品。 The end result is the same: the soil does not support growth of vegetative growth.最终的结果是相同的：营养生长的土壤不支持的增长。 Also, because water will drain through the soil, contamination may pose a threat to the water supply.另外，因为通过土壤水分会流失，污染可能构成威胁供水。 Remedying contaminated soil can be an involved and expensive process, depending on the type and degree of contamination involved.受污染的土壤进行补救，可以是一个复杂的和昂贵的过程，涉及污染的类型和程度。
When subsurface soil becomes contaminated with materials that threaten health, drinking water or the food chain, it must be cleaned up.当表层土壤污染威胁健康的材料，饮水或食物链，它必须被清理。 Water supplies are drawn from wells that collect water from areas (called aquifers) and rivers collect waters from watersheds that may cover hundreds of square miles; what happens at one industrial site or abandoned gas station can affect a huge area.水供应来自水井，收集地区的水（称为含水层）和河流收集可能涉及数百平方英里的流域水域，发生在一个工业用地，或废弃的加油站可以影响一个巨大的区域。 The Environmental Protection Agency's (EPA) Hazard Ranking System (HRS) provides an assessment tool for determining the relative potential threat contaminated soil poses to human health or the environment.环境保护署（EPA）的危害排名系统（HRS）提供了一种评估工具，确定相对的潜在威胁人类健康或环境带来的污染的土壤。 The HRS evaluates ground, air and surface water migration (where and how water moves) and exposure to the contaminated soil by resident and nearby populations as well as any sensitive environments (such as a hospital or nursing home).在HRS评估地面，空中和地表水迁移（水动作在何处以及如何）和接触到的居民和附近居民以及任何敏感的环境中（如医院或养老院）受污染的土壤。 It then scores the risk of the potential for release of hazardous substance into these environments, characteristics of the waste and any targets (people or sensitive environments) that might be affected by such a release.然后，它的分数在这些环境中有害物质释放到的潜在风险，废物的特点和可能??影响这种释放的任何目标（人或敏感的环境中）。 This two-step evaluation pattern is also followed by most state departments of health or environment.这两个步骤的评价模式也随之由健康或环境的大多数国家有关部门。 Once hazards have been evaluated and placed on a list of priorities, the agency is able to develop a plan for remediation.一旦危害进行了评估，并放在优先工作清单，该机构能够制定一个整治计划。 Remediation plans developed by private parties must also be approved by a governmental environmental authority, depending on local and state laws.整治计划由私人聚会开发，也必须由政府环保机关批准，根据当地和国家的法律。
Decontamination plans use one or more types of decontamination strategies.去污计划使用一个或多个类型的去污战略。 Many contaminants can be contained or cleaned out of the soil.可以包含许多污染物或土壤净化。 Toxins that biodegrade can be confined by covering soil with plastic or sinking plastic into adjoining soil to contain the toxin until it decomposes and no longer poses a threat to the surrounding environment.毒素的生物降解，??可限于覆盖土用塑料或塑料沉入毗邻土壤含有毒素，直到它分解，并不再对周围环境构成了威胁。 Containment is often the first step in a decontamination plan.遏制往往是在净化计划的第一步。 Another strategy, cleaning, may involve heating the soil to kill organisms or treating it with chemicals to neutralize or convert contaminants into biodegradable substances.另一种策略，清洗，可能涉及到的土壤加热杀死生物体或化学品处理，以消除或转换成可生物降解的物质的污染物。 These methods take place in situ (on site), either by sinking supply lines into the subsoil or by bringing up subsoil and running it on a conveyor belt through a truck-mounted scrubber or oven.这些方法在原位（现场），要么沉入地下资源的供给线，或将底土和运行的传送带上，通过一个车载式洗涤器或烤箱。 Water-processing treatments, like ion exchange, reverse osmosis and electrodialysis can be used for some contaminants like nitrates that are extremely water-soluble.水加工处理，如离子交换，反渗透和电渗析可以使用像极微溶于水的硝酸盐，一些污染物。 In situ methods all remove contaminated soil, process it then deposit it back in its former location.原位方法清除受污染的土壤，处理，然后存放在其前的位置回。
Asbestos, benzene and many hydrocarbons that cannot be removed in situ must be physically removed.不能在原地拆除石棉，苯和许多碳氢化合物，必须拆除。 Decontamination plans specify a volume and dimensions of earth that must be removed to eliminate contaminated soil.去污计划指定一个地球的体积和尺寸，必须拆除，以消除污染的土壤。 Soil must be tested before removal and after replacement with clean fill.土壤必须进行测试前拆除和更换清洁填写后。 Contaminated soil is moved either to a landfill isolated from groundwater or to a facility where the contaminant is removed so the soil can be safely landfilled.受污染的土壤是从地下水中分离出一个垃圾填埋场或移动到污染物的取消，使土壤可以安全填埋设施。 Soil that replaces the contaminated soil must be tested before and after filling.必须在测试前和灌装后的土壤，取代了受污染的土壤。 Soil replacement plans that involve removal often call for hazardous material procedures, special equipment and clothing for workers.土壤更换，涉及搬迁的计划往往要求有害物质的程序，专用设备和服装的工人。
Lovibond Photometer for drinking, process and waste water analysis
Handmade with pride in the US since 1982! Quality and affordability.
Emergency Food, Water, and Kits 应急食品，水和试剂盒
Natural salt therapy for asthma, hayfever,breathing problems
联系客服
