US keeps air pollution standard established under Obama
US environmental regulators have announced they are leaving intact an air quality standard for power plant pollution that can worsen asthma in children, despite calls by health advocates for a tougher rule.
The move keeps in place a threshold for sulfur dioxide pollution established in 2010 by the US Environmental Protection Agency under then US President Barack Obama. Sulfur dioxide comes from burning coal to produce electricity and from other industrial sources.
