Establishing a high spatial density biomonitoring system for atmospheric depositions in Eastern Canada.

建立加拿大东部大气沉降的高空间密度生物监测系统。

• 批准号: 566896-2021
• 负责人: Bellenger, JeanPhilippe
• 金额: $ 2.19万
• 依托单位: Université de Sherbrooke
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=721230
• 关键词: Establishing; spatial; density; biomonitoring; system

The project aims at establishing a baseline for inorganic and organic atmospheric contaminants of anthropogenic origin in Eastern Canada. Data on atmospheric deposition are scarce in Quebec and come from a few sites hosted by the atmospheric program of Environment and Climate Change Canada (ECCC). Evaluating the impact of human activities on atmospheric deposition at large scale thus relies on few stations and on predictive models. These models exist for contaminants sampled on a routine basis (such as sulfur, nitrogen and mercury for instance) while many inorganic and organic contaminants are not covered. Moreover, the modeled contaminants lack strong validation because large areas of the country are not covered by atmospheric stations. The main objectives of this project are to produce a field-data based evaluation of current atmospheric deposition of contaminants, both organic and inorganic, at the Quebec scale, and significantly improve the geographic cover and density of data feeding atmospheric deposition models. This project will yield valuable data with a never achieved spatial resolution on current atmospheric deposition of contaminants at the scale of the province providing essential information to guide environmental actions and priorities at the local, provincial and national levels. The project will contribute to the bryomonitoring initiative (https://bryomonitoring.ca), aiming at establishing a panCanadian and long-term biomonitoring program in Canada. This baseline will be the foundation for future monitoring of atmospheric depositions; it will be a reference in time that decision makers and stakeholders can use to estimate how environmental policies and human activities impact environmental quality in the decades to come. It will help improving models that are essential tools to predict atmospheric depositions at the National scale.

该项目的目的是为加拿大东部人为来源的无机和有机大气污染物建立基线。关于魁北克大气沉积的数据很少，来自加拿大环境和气候变化（ECCC）大气项目主办的几个站点。因此，在大尺度上评价人类活动对大气沉积的影响依赖于少数台站和预测模式。这些模型适用于常规采样的污染物（例如硫、氮和汞），而许多无机和有机污染物不包括在内。此外，模拟的污染物缺乏强有力的验证，因为该国大片地区没有被大气监测站覆盖。该项目的主要目标是在魁北克尺度上对目前大气中有机和无机污染物的沉积进行实地数据评价，并大大改善大气沉积模型数据的地理覆盖范围和密度。该项目将提供有价值的数据，以从未实现过的空间分辨率，了解全省范围内目前大气中污染物的沉积情况，为指导地方、省和国家各级的环境行动和优先事项提供重要信息。该项目将为生物监测倡议（https://bryomonitoring.ca）作出贡献，该倡议旨在在加拿大建立一个泛加拿大和长期的生物监测方案。这一基线将成为今后监测大气沉积的基础；它将成为决策者和利益相关者可以用来估计未来几十年环境政策和人类活动如何影响环境质量的参考资料。它将有助于改进模型，这些模型是预测全国范围内大气沉积的基本工具。