Suspension particle size and water quality data from Laihianjoki and Sulvanjoki flocculation experiments in April 2021@en

Water samples were collected from the Laihianjoki and Sulvanjoki rivers in April 2021, using a bucket and transferred to 30 L acid-washed containers. The sampling was conducted during springtime, a few weeks after the peak flow caused by snow smelt. The collected river waters were immediately analyzed for pH, temperature, electrical conductivity, and salinity using a WTW Multiline P4 meter. The samples were then transported to the Tvärminne field station of the University of Helsinki, where laboratory experiments began within 24 hours. […]2021年4月，研究人员借助采样桶从莱赫扬约基河（Laihianjoki）与苏尔万约基河（Sulvanjoki）采集水样，并将水样转移至经酸洗处理的30升容器中。本次采样于春季开展，时值融雪引发的洪峰出现数周之后。采集得到的河水样本即刻采用WTW Multiline P4型多参数水质分析仪，完成pH值、温度、电导率与盐度的检测。随后样本被运送至赫尔辛基大学特瓦明讷野外工作站，并于24小时内启动实验室相关实验。[…]