Which of the following in automobile exhaust can cause cancer?

1.	Which of the following in automobile exhaust can cause cancer?
Answer» <html><body><p> Polyclinic hydrocarbons</p><br/><br/><p>Polycyclic aromatic hydrocarbons (PAHs) are formed during incomplete combustion. <a href="https://interviewquestions.tuteehub.com/tag/domestic-957937" style="font-weight:bold;" target="_blank" title="Click to know more about DOMESTIC">DOMESTIC</a> wood burning and road traffic are the major <a href="https://interviewquestions.tuteehub.com/tag/sources-1219409" style="font-weight:bold;" target="_blank" title="Click to know more about SOURCES">SOURCES</a> of PAHs. Exposure to PAH-containing substances <a href="https://interviewquestions.tuteehub.com/tag/increases-1040626" style="font-weight:bold;" target="_blank" title="Click to know more about INCREASES">INCREASES</a> the risk of <a href="https://interviewquestions.tuteehub.com/tag/cancer-19407" style="font-weight:bold;" target="_blank" title="Click to know more about CANCER">CANCER</a> in humans. The carcinogenicity of PAHs is associated with the complexity of the molecule, i.e., increasing number of benzenoid rings, and with metabolic activation to reactive diol epoxide intermediates and their subsequent covalent binding to critical targets in DNA. Quantitative cancer risk estimates of PAHs as air pollutants are very uncertain because of the lack of useful, good-quality data.</p></body></html>

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