Vehicular Exhaust and Air Pollution

Introduction

Individual tailpipe emissions

Transport and fate in the environment

Measuring exposures

Prevention and control of exposure

Exposure Pathway

Risk assessment

Adverse effects


Harmful Effects

Dose Response

Absorption, Metabolism and Molecular Mechanisms of Action

Organ Sites of Toxicity

Biomarkers

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Exposure Pathway

People are exposed to vehicular exhaust in the air they breathe everyday. The exposure pathway is inhalation and the main target organ is the lung. Higher exposure is normally correlated to areas with more traffic. However, some areas with little traffic also have high exposure because the smog can travel with the wind patterns. There are four groups that are at higher risks then the rest of the population. These groups are children, active adults (construction workers and runners), people with respiratory illness, and people that are randomly sensitive.