Gases from the sewer are extremely toxic, foul and even explosive. One of its constituent gases is so dangerous that it’s actually used as a chemical weapon while another is so heavy that it will quickly displace oxygen and suffocate anyone nearby. In most cases, these gases remain in the sewer, but they can enter the living space through dried out plumbing fixtures, plumbing cracks and other sources. To find out more about the danger, how it arises and what to do about it, please read out new article on sewer gases in the home.