Sökning: "passive samplers"
Visar resultat 1 - 5 av 10 avhandlingar innehållade orden passive samplers.
1. Passive sampling for monitoring of inorganic pollutants in water
Sammanfattning : As new environmental management policies for watersheds are implemented, there has been a growing interest for new monitoring alternatives. Traditionally grab sampling has been the method of choice for monitoring purposes, but may not be adequate or economically viable, to meet the requirements of the new policies. LÄS MER
2. Passive sampling of organic pollutants in air : applicability of thick bed diffusive samplers and pine needles
Sammanfattning : .... LÄS MER
3. Semipermeable membrane devices in monitoring of organic pollutants in the aquatic environment
Sammanfattning : Semipermeable membrane devices (SPMDs) are passive samplers capable of concentrating hydrophobic chemicals from water, sediments, soil and air. They consist of layflat polymeric membrane such as polyethylene containing a thin film of synthetic lipid such as triolein. LÄS MER
4. Semipermeable membrane devices as integrative tools for monitoring nonpolar aromatic compounds in air
Sammanfattning : Air pollutants pose a high risk for humans, and the environment, and this pollution is one of the major environmental problems facing modern society. Active air sampling is the technique that has been traditionally used to monitor nonpolar aromatic air pollutants. LÄS MER
5. Use and Development of Diffusive Samplers to Analyse the Fate of Polycyclic Aromatic Compounds, Polychlorinated Biphenyls and Pharmaceuticals in Wastewater Treatment Processes
Sammanfattning : The efficiency of wastewater treatment systems is commonly measured by the reductions of parameters such as biological oxygen demand (BOD), chemical oxygen demand (COD) and total suspended solids (TSS) and/or reductions in levels of selected macro compounds (e.g. long-chained hydrocarbons and inorganic compounds). LÄS MER