Dissolved Metal and Metalloid Concentrations for Pennypack Creek, Philadelphia, PA, USA

This resource includes stream chemistry for Pennypack Creek, Philadelphia and Montgomery Counties, Pennsylvania. This data set is part of the Urban Critical Zone Cluster in the NSF Critical Zone Collaborative Network. Stream grab samples are analyzed on an ICPMS for 38 dissolved metals and metalloids. Biweekly stream sampling sites are co-located with USGS stream gaging stations 01467048 (PPRH) and 01467042 (PPPI). Synoptic sampling is carried out along the entire main stem (from PPRH upstream) over the span of several hours after a long dry period, approximately twice per year. Data are collected for the purpose of (1) trend analysis as a function of space and time; (2) evaluation of the effects of regional geology, anthropogenic perturbations, and weathering processes on stream chemistry; and (3) comparison with stream chemistry from other sites in the Urban CZ cluster.