Ajax East and West storm sewers and Richmond Hill stormwater pond (Greater Toronto Area) water chemistry monitoring (2020-2022)

The data presented here are from just under two years of intensive sampling of stormwater in two sewersheds in Ajax and a stormwater pond in Richmond Hill. The sampled stormwater was then analyzed for a suite of chemistry parameters to give information about: the major anions, major cations, phosphorus (P) speciation (dissolved reactive P, total dissolved P, total P), dissolved organic and inorganic carbon, electrical conductivity, pH, nitrogen speciation (ammonium, nitrate, nitrite), total suspended solids, and road salt ions (sodium, chloride). This sampling was done in collaboration with the Toronto and Region Conservation Authority and the City of Richmond Hill as part of a Natural Science and Engineering Research Council of Canada (NSERC) Strategic Partnerships Grant. The other organizations that supported the collection of this data by supporting site set up and/or site access were: the Toronto and Region Conservation Authority and the City of Richmond Hill.本数据集的数据来源于对阿贾克斯（Ajax）两座雨水汇水区以及列治文山（Richmond Hill）一座雨水塘开展的近两年高强度雨水采样工作。采集所得雨水样本随后针对一系列化学参数完成检测分析，检测指标涵盖：主要阴离子、主要阳离子、磷（P）形态（溶解反应性磷、总溶解磷、总磷）、溶解态有机碳与无机碳、电导率、pH值、氮形态（铵态氮、硝态氮、亚硝态氮）、总悬浮固体以及道路融雪盐离子（钠、氯离子）。本次采样工作由多伦多及地区保护局（Toronto and Region Conservation Authority）与列治文山市政府协作完成，系加拿大自然科学与工程研究理事会（Natural Science and Engineering Research Council of Canada，NSERC）战略合作伙伴资助项目的组成部分。其余为本数据集采集工作提供场地搭建及/或场地通行支持的组织机构为多伦多及地区保护局与列治文山市政府。