Discharges to rivers from abandoned metal mines

Information about average flows and water quality for known mine water discharges from abandoned metal mines in England. Adapted and updated from "Prioritisation of abandoned non-coal mine impacts on the environment: The national picture." published by the Environment Agency in 2012 (available from gov.uk).
Data are known to be incomplete. Blank values mean less than detection limit or not measured.
Data supplied are average values for flows (l/s), pH, metal concentrations (mg/l) and metal flux (kg/yr).
Metals/metalloids included: Arsenic (As), Cadmium (Cd), Copper (Cu), Iron (Fe), Manganese (Mn), Nickel (Ni), Lead (Pb), Zinc (Zn). Attribution statement: © Environment Agency copyright and/or database right 2016. All rights reserved.

本数据集收录了英格兰已废弃金属矿山已知废水排放的平均流量及水质信息，数据源于2012年环境署发布的《废弃非煤炭矿山对环境影响优先级排序：国家概览》一书的改编与更新（可从gov.uk获取）。数据存在不完整性，空值表示低于检测限或未进行测量。提供的数据为流量（每秒升数）、pH值、金属浓度（每升毫克）以及金属通量（每年千克）的平均值。所包含的金属/类金属元素包括：砷（As）、镉（Cd）、铜（Cu）、铁（Fe）、锰（Mn）、镍（Ni）、铅（Pb）和锌（Zn）。归属声明：© 环境署版权和/或数据库权利2016。版权所有。