Filters: Tags: Retention (X)58 results (39ms)
This study evaluated the chemical fractionation of Cu and Zn from source to deposition in a stormwater system. Cu and Zn concentrations and chemical fractionation were determined for roadway dust, roadway runoff and pond sediments. Stormwater Cu and Zn concentrations were used to generate cumulative frequency distributions to characterize potential exposure to pond-dwelling organisms. Dissolved stormwater Zn exceeded USEPA acute and chronic water quality criteria in approximately 20% of storm samples and 20% of the storm duration sampled. Dissolved Cu exceeded the previously published chronic criterion in 75% of storm samples and duration and exceeded the acute criterion in 45% of samples and duration. The majority...
Retention of needles and seeds on logs in Picea sitchensis-Tsuga heterophylla forests of coastal Oregon and Washington.
Production and loss of methylmercury and loss of total mercury from boreal forest catchments containing different types of wetlands
Effects of land use, climate variation, and N deposition on N cycling and C storage in northern hardwood forests
Assessment of a crop growth-water balance model for predicting maize growth and yield in a subtropical environment
Development of the heavy metal pollution trends in several European rivers: An analysis of point and diffuse sources
Investigation of denitrification rates in an ammonia-dominated constructed wastewater-treatment wetland
Fate of organochlorine pesticides in soils and terrestrial biota of "Los Padres" pond watershed, Argentina