Researchers find higher concentrations of trace metals such as barium in the hair and urine of 29 pregnant women living near fracking wells in British Columbia, Canada.
While methane pollution caused by natural gas production in Pennsylvania is underestimated by the US Environmental Protection Agency, natural gas still has half the carbon footprint of underground coal mining, according to an international team of researchers.
Research led by the University of California, Riverside has for the first time produced superfog, a dense combination of smoke and fog, in a laboratory. The team identified the smoke particle size distribution and concentration, ambient liquid water content, ambient temperature, ambient relative humidity, fuel moisture content and wind speed that lead to superfog formation. They caution, however, that superfog cannot yet be predicted with any certainty.
Researchers at the University of Oxford have confirmed that human activity and other external factors are responsible for the rise in global temperature.
Waterpipe tobacco smoking, otherwise known as 'hookah' or 'shisha,' is becoming increasingly popular worldwide, especially among youth. Traditional hookahs burn charcoal as a heat source, but recently, electrical heating elements (EHEs) have been introduced to the market. Reinforced by product advertising and package labeling, many hookah smokers believe that EHEs are less harmful than charcoal. Now, researchers report in ACS' Chemical Research in Toxicology that although EHEs reduce some toxicants, they increase others.
Since 2013, annual emissions of a banned chlorofluorocarbon (CFC) have increased by around 7,000 tonnes from eastern China, according to new research published in Nature today by an international team of scientists from the UK, South Korea, Japan, USA, Australia and Switzerland.
Fewer deaths and serious illnesses have occurred in the US over the past decade as a result of cleaner air, according to a new report focusing on the two most potent air pollutants: fine particle (PM2.5) and ground-level ozone (O3). However, these improvements are almost entirely due to reductions in PM2.5 pollution.
A new study from researchers at the University of Cincinnati and Cincinnati Children's Hospital Medical Center looks at the correlation between exposure to traffic-related air pollution (TRAP) and childhood anxiety, by looking at the altered neurochemistry in pre-adolescents.
Researchers in Brazil find that high levels of heavy metals and particulate matter suspended in the atmosphere restrict the growth of tipuana trees, which are ubiquitous in São Paulo, the largest Brazilian city.
Ivan Nekhaev, a postdoc at St. Petersburg University, studied snails of the genus Boreocingula -- tiny gastropods as small as half a centimeter -- and first discovered that Arctic micromolluscs can show signs of pseudohermaphroditism. Boreocingula martyni adult females grow underdeveloped male genital organs.