Headwater stream geochemical data from southeast Sweden, 2016-2017

About 100 headwater streams in SE Sweden were sampled during three consecutive seasons (Summer, autumn, and spring) in 2016 and 2017, to monitor seasonal changes in the geochemical composition of the stream waters. All water samples were analysed for their geochemical element composition (70+ elements).

Water samples in southeastern Sweden were taken in August/September 2016, November, and December 2016 and March, and April 2017. The water samples were taken in headwater streams no longer than 2.5 km, without lakes and urban areas, and with less than 5% agricultural land in the catchment (more details can be found in Löfgren et al., 2014 (10.1007/s10661-014-4054-5) and Conrad et al., 2019 (10.1021/acsearthspacechem.9b00237).
The data contain more than 70 element concentrations on mostly unfiltered water samples, measured with ICP-MS.

2016至2017年连续三个季节（夏季、秋季与春季），研究团队对瑞典东南部约100条源头溪流开展采样工作，以监测溪流水体地球化学组成的季节变化特征。所有水样均针对其地球化学元素组成（70余种元素）开展分析测试。

本次采样的水样采集于2016年8月/9月、2016年11月、12月以及2017年3月、4月。采样对象为流域内无湖泊与城区、农业用地占比低于5%且长度不超过2.5 km的源头溪流；详细采样信息可参见Löfgren等（2014，DOI: 10.1007/s10661-014-4054-5）与Conrad等（2019，DOI: 10.1021/acsearthspacechem.9b00237）。

本数据集包含70余种元素的浓度数据，多数样品为未过滤水样，采用电感耦合等离子体质谱法（ICP-MS）完成测定。