Benzene is a naturally occurring chemical compound. Scientists can also make it in a laboratory, and companies widely use it as a solvent in the pharmaceutical and chemical industries. Exposure to ...

LONDON – In the spring of 2015, chemical engineer Melvyn Kopstein wrote to the International Agency for Research on Cancer (IARC) to alert it to what he thought were serious flaws in its work.

Some workers at oil and gas sites where fracking occurs are routinely exposed to high levels of benzene, a colorless gas that can cause cancer, according to a study by the National Institute for ...