Experts from the World Health Organization have claimed that smoke emitted by diesel exhausts can develop cancer. They affirmed that the smoke produced is similar in effect as that administered in case of other materials, including asbestos, tobacco and arsenic.

All these substances can be categorized under carcinogens, agents potential enough to cause cancer.

Rather, latest reports suggest that France-based International Agency for Research on Cancer (IARC), which is a division of the WHO, has already placed diesel exhausts in group 1 category, which includes substances that have a direct effect in causing cancer.

Previously diesel exhausts were categorized in group 2A, which includes suspected carcinogens.

Further, the experts have emphasized that the decision they took was agreed by all and they also have scientific evidences, which support their decision in placing the substance in group 1 category. Moreover, it has been asserted that the decision has been taken after long discussions of experts.

On the other hand, these experts have advised workers and even their employers to limit the exposure to smoke emitted by exhausts.

In a statement, the IARC said, "The (expert) working group found that diesel exhaust is a cause of lung cancer and also noted a positive association with an increased risk of bladder cancer".