Air quality

Air quality in Montana and other northern states was classified as "fair to poor" on Wednesday, and conditions are expected to last through the weekend.

Large tanks of algae have been set up to harvest carbon dioxide from city air, converting it to oxygen faster than trees can.

"If I lived in East Palestine, I would be skeptical of claims that it's safe to return home, and I'd be looking for greater transparency," Tim Whitehouse said.

Residents in East Palestine, Ohio, aren't sure if they can trust the EPA and other government officials about the air quality.

The Ohio train wreck released carcinogens like vinyl chloride into the environment, with dead animals and impacts on human health already being reported.

The Great Salt Lake in Utah has recorded its lowest water levels since records began in 1847, due to drought.

The new Ecobee Smart Thermostat Premium is probably the best smart thermostat for most people. An updated design and refined features make it a winner.

Looking forward to a future of safe workplaces free from the threat of virus transmission and pollutants requires a proactive approach.

Using data from over 6,000 cities, the World Health Organization estimates that about 99 percent of the global population lives in an area with harmful air.

"We're seeing more prevalence of wildfire smoke and increased intensity," said Tom Roick with the Oregon Department of Environmental Quality.

Start with a comprehensive review of your HVAC systems.

Almost half of all Americans live in counties with unhealthy air quality. These 50 destinations top the list of cities with the dirtiest air in the country.

The current rate of deaths in L.A. County was reported to be more than double that of pre-pandemic years, according to the coroner's office.

The air quality is expected to remain "unhealthy" through Friday in the Northern Zone and Eastern Zone of the Bay Area.

An air quality advisory remains in place for all of Oregon through Thursday.

Wildfire smoke from the west coast has reached as far east as the Great Lakes region.

Portland faces hazardous air quality conditions while visibility is less than a mile in some areas.

Parts of California are experiencing hazardous air quality as a result of the smoke produced by the numerous wildfires.

The air quality in the Bay Area is expected to be at a moderate level from Thursday.

Vacaville faces very unhealthy levels of air pollution as wildfires burn across the region, producing heavy smoke.

"This is the most significant event in the past 50 years," said environmental health scientist Pablo Méndez Lázaro.

The author's of the assessment say cleaner air is also responsible for fewer work absences and premature births.

"Poisoning our environment means poisoning our own body," said researcher Yaron Ogen.

"I have never seen aerosol values so low in the Indo-Gangetic Plain at this time of year," said NASA scientist Pawan Gupta.

Residents of the city of Jalandhar in Punjab have been posting images on social media showing the snow-capped peaks of the the Dhauladhar mountain range.

A man sentenced for gang-raping a 23-year-old woman on a bus claims high levels of pollution in Delhi's air and water is already cutting his life short, using it as an argument to change his sentence.

The move is usually reserved for severe human rights violations.

New research suggests current air pollution standards are failing to protect human health and life.

Pollution in New Delhi peaked this month, reaching levels not seen in three years. In some parts of the city, the Air Quality Index approached 1,000—more than three times what is considered hazardous.

Scientists carried out the study after seeing exaggerated claims about the purifying powers of plants online.