Surface sediment elemental compositions of 167 Canadian lakes show widespread exceedance of quality guidelines for metals

Triple quadrupole inductively coupled plasma mass spectrometer (ICPQQQ), site information and land use data. ICPQQQ data are measured in mg/kg Longitude and latitude are presented in decimal degrees Human impact index (hi_index) is unitless All land-use metrics are presented as the % of total lake catchment area Original publication: Zilkey, D. R., Beaulieu, M., Amyot, M., Antoniades, D. & Gregory-Eaves, I. (2025). Surface sediment elemental compositions of 167 Canadian lakes show widespread exceedance of quality guidelines for metals. Science of the Total Environment, 967(178704).