Essay On Diesel Vapor

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INTRODUCTION
Pollutants or toxic materials when dispersed in air, generally form mixtures, tend to alter their physical properties, such as density, viscosity, enthalpy, and later are indistinguishable from those of clean air. While dispersed in the air, all molecules of a given compound are essentially equivalent in their size and probabilities of contact with ambient surfaces, respiratory tract surfaces, and contaminant collectors or samplers. To study in detail Diesel particulate matter and mercury vapour are dealt below for better understanding.
DIESEL PARTICULATE MATTER (DPM)
Diesel exhaust has three major sources namely mobile sources (on-road vehicles), stationary area sources (industrial sources) and stationary point sources. Diesel
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[4] The respiratory and cardiovascular effects of diesel exhaust are thus thought to be connected via an oxidative-stress initiated inflammation because inflammation is known to cause a large number of changes far from the initial site of the local inflammation and potentially involving many organ systems.
MERCURY VAPOUR
Mercury (Hg) is found in air, water, soil and exists in several forms like elemental or metallic mercury, inorganic mercury compounds and organic mercury compounds. Elemental or metallic mercury is a shiny, silver-white metal and is liquid at room temperature. If heated, it is a colourless, odourless gas. Mercury compounds are manufactured in small amounts for specialty uses, such as chemical and pharmaceutical applications. Larger quantities of these compounds are generated as by-products from pollution control activities at gold mines or in waste.
Who are exposed to
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