Smog is a major problem in some cities of north China.
雾霾是中国北方一些城市的主要问题。
Cars cause pollution and
smog in cities.
汽车在城市中造成污染和烟雾。
The sky was overspread with a heavy
smog.
天空笼罩着浓重的烟雾。
The Luxurious house appeared in smog and fire and people in the house were trying to get out of it.
那幢豪华的房子笼罩在烟雾云海之中，房子里的人正在设法从里面掏出来。
Our products will help clear smog that is a leading cause of respiratory diseases," she told Xinhua.
The average density of PM2.5 -- fine particulate matter that causes smog -- fell 15.6 percent compared to a year earlier.
As China released stricter regulations to reduce smog and promoted carbon trade in several pilot cities as the country aims to achieve carbon peak by 2030 and carbon neutrality by 2060, there are still hurdles and limits for coal chemicals, including water supply, transportation, waste disposal and carbon emission issues, said Tang.
Liang said the market for air purifiers, however, still has large potential, as smog remains a concern in some regions, and consumers have growing needs for equipment dealing with pollutants other than PM 2.5 particles, like formaldehyde and pollen.
The capital introduced an annual quota on new car registrations in 2011 to ease traffic congestion and combat smog.
Environmental groups criticized the assertion about reducing crash deaths, and said the proposal would drive up gasoline prices, increase asthma-inducing smog, and reverse one of the most significant steps Washington has taken to curb climate-changing greenhouse gas emissions.
Prime Minister Narendra Modi's government wants all new cars on India's roads to be electric by 2030, to combat smog that routinely eclipses dangerous levels in the nation of 1.25 billion.
Carmakers in China have come under pressure to ramp up production of battery electric and hybrid vehicles ahead of tough new quotas to be imposed by Beijing, which wants to reduce urban smog and lower the country's reliance on oil.
But demand for LNG trucks is soaring as companies and manufacturers shift to vehicles that run on the gas Beijing sees as a key part of its war against smog.
The shift from diesel to LNG is among many government measures aimed at clearing the air, especially in the north, which was often shrouded in coal-fueled smog for much of the winter in the past.
Nitrogen oxide, or NOx, can cause smog and acid rain.
China's drive for electric vehicles, driven in part to combat urban smog, has put pressure on Toyota Motor Corp to rethink its earlier scepticism about battery-electric technology.
"As the problem of smog intensifies in the Beijing-Tianjin-Hebei region and nearby areas in recent years, our company will strengthen technological research and development," said Li Qilin, secretary of the board at SPC.
Despite government effort to fight pollution, frequent outbreaks of smog have become increasingly common in winter in northern China where cold weather conditions and the burning of coal combine to exacerbate the situation.
To improve air quality in the Beijing-Tianjin-Hebei area, China has replaced dirtier coal use and penalized polluters in an effort to lower the intensity of smog.
China issued a five-year action plan in 2013 in response to heavy smog smothering many regions.
"Since the end of 2022, long-lasting, cross-year smog have occurred in vast areas in southern Henan.
In 1952, for instance, pollution and atmospheric conditions resulted in an incident known as the Great London Smog.
Up to 4,000 people died as a direct result of the smog, according to government medical reports in the weeks following the event.