Scientists develop slippery toilet coating to stop poo sticking

Spray-on surface could prevent bacteria building up and reduce household water use The toilet brush need never leave its holder again. Scientists have created a super-slippery coating that helps usher excrement on its way without leaving traces behind. The spray-on coating, which is slipperier than Teflon, reduces adhesion of even tenacious faeces by up to 90%, tests suggest, so far less water is needed to flush them away and leave the toilet clean. Researchers at Penn State University believe the coating could slash Writing in the journal Nature Sustainability, Wong, who has co-founded a company to sell the coating, describes how all of the comparison surfaces displayed extreme stickiness to the faeces, while the Less coating appeared to shed its …

Tap water contaminants linked with 100,000 cancer cases, US study finds

Most of the risk is from naturally occurring arsenic, the byproducts of chemicals used to disinfect water and contaminants Contaminated tap water causes 100,000 cancer cases in the US over a lifetime, according to a new study from scientists with the Environmental Working Group. Most of the cancer risk is from naturally occurring arsenic, the byproducts of chemicals used to disinfect water and radioactive contaminants, according to the database for that purpose. In Washington DC, for example, regulators detected 10 contaminants at levels that exceeded health guidelines, which are recommendations rather than requirements. Most are associated with cancer.