Metal Sampling System
Current stage of industrialization and the demand for improved quality of life has resulted in increased exposure to air pollution coming from industrial activities, traffic and energy production.
A number of metals are emitted predominantly into the air among other pollutants owing to the various industrial activities, These include Antimony , Arsenic, Beryllium, Cadmium, Chromium, Cobalt, Lead, Manganese, Mercury, Nickel, Selenium. The pollution due to these metals occurs in various amounts and generally comes in the form of compounds and / or metal fines or fibres.
Of these, the heavy metals cadmium, lead and mercury have been investigated at length. Though technological improvements and the elimination of, or reduction in, some processes, products and materials have resulted in the decrease in environmental exposure to these three metals, they are still present in the atmosphere and are carried to places remote from the sources of emission by means of long-range atmospheric transport.
Anthropogenic sources generally outweigh natural emissions. Even with the current trend towards reductions in the former, releases into the environment continue to lead to slow increases.
Metallic pollutants dispersed in the ambient air become integrated with other particulates. Sampling for metallic pollutants is carried out as integrated sampling for all particulates and is not carried out separately. The metallic components are analysed after collection of the samples through a number of techniques.
A High Volume Sampler is generally employed for this purpose though the selection of the sampler will be dictated by the object of sampling and other considerations.
All our PM samplers can be used for this purpose.