Linking agro-ecosystem impacts to emerging contaminants from land applied municipal biosolids

将农业生态系统影响与土地施用的城市生物固体中出现的污染物联系起来

基本信息

批准号：
386127-2010
负责人：
Price, Gordon
金额：
$ 1.82万
依托单位：
Dalhousie University
依托单位国家：
加拿大
项目类别：
Discovery Grants Program - Individual
财政年份：
2015
资助国家：
加拿大
起止时间：
2015-01-01 至 2016-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=572917
关键词：
Linking agro ecosystem impacts emerging

项目摘要

Title: Linking agro-ecosystem impacts to emerging contaminants from land applied municipal biosolids Land applying municipal sewage biosolids on agricultural land is a widespread practice in North America. Across most jurisdictions, sewage biosolids must meet specific quality guidelines for heavy metal concentrations and pathogens in order to be certified for use in agriculture. Recently, groups of chemicals originating from pharmaceutical and personal care products, called Emerging Contaminants (ECs), have been found in treated wastewaters and in soils. These ECs have been identified by the U.S. Environmental Protection Agency (USEPA) and the Canadian Council of Ministers of the Environment (CCME) as chemicals which may be of concern. Mounting scientific evidence suggests ECs, which include flame retardants, antibiotics, and endocrine disrupting substances, may persist in the environment and cause harm to invertebrate organisms. Some of these compounds may become bio-available to different organisms through chronic exposure in their habitat. Limited information exists on the contribution of agricultural activities to the fate, persistence, and ecotoxicological impact of ECs in soils. The focus of Dr. Price's research program is to evaluate the impact of certain ECs on specific terrestrial organisms which serve as ecosystem bio-indicators. This research will improve our understanding of the potential consequences of these chemicals in our agricultural soils and provide management recommendations for the safe use of municipal biosolids.

标题：将农业生态系统影响与土地施用的城市生物固体中出现的污染物联系起来在农业用地上施用城市污水生物固体是北美的一种普遍做法。在大多数司法管辖区，污水生物固体必须符合重金属浓度和病原体的特定质量准则，才能获得农业使用认证。最近，在处理过的废水和土壤中发现了一组源自药品和个人护理产品的化学物质，称为新兴污染物 (EC)。这些 EC 已被美国环境保护署 (USEPA) 和加拿大环境部长理事会 (CCME) 认定为可能需要关注的化学品。越来越多的科学证据表明，ECs（包括阻燃剂、抗生素和内分泌干扰物质）可能会持续存在于环境中并对无脊椎动物造成伤害。其中一些化合物可能通过长期暴露在其栖息地而被不同的生物体生物利用。关于农业活动对土壤中 EC 的命运、持久性和生态毒理学影响的信息有限。 Price 博士研究项目的重点是评估某些 EC 对作为生态系统生物指标的特定陆地生物的影响。这项研究将提高我们对这些化学物质在农业土壤中的潜在后果的了解，并为安全使用城市生物固体提供管理建议。