It's as clear as day - China needs its own Clean Air Act
Visibility in some eastern cities was reduced to less than 50 metres and to less than five metres in the worst hit places, where PM2.5 concentrations hit 500 micrograms per cubic metre. The World Health Organisation's recommended level for the pollutant is 25mcg per cubic metre.
To be sure, air quality in China typically plummets in winter months as the heating systems in cities north of the Yangtze River depend on coal. But the scale and severity of the smog last week was the worst in recent memory as it covered not only the northern cities like Beijing but also a large number of cities south of the Yangtze which do not burn coal for heating, including Shanghai, Nanjing , and other parts of the Yangtze River delta.
According to the national observatory, 104 cities in more than 20 provinces last Friday reported PM2.5 readings at more than 300, classified as severe, the highest in the six-level rating system.
The smog is getting worse daily and reaching almost all corners of the country. Earlier this year, even Hainan , well known for its blue skies and sandy beaches, was covered in heavy smog.
More than 70 per cent of the country's rivers and lakes are heavily polluted and deemed unfit even for animals to drink and much of the country's underground water was also equally polluted.
Media are regularly reporting on diseases linked directly to pollution. Last month it emerged that an eight-year-old girl who lived beside a busy road in Jiangsu had become the mainland's youngest lung cancer patient. Her doctor was quoted as saying her illness was the result of her breathing in pollutants from car exhaust fumes.
Many more mainlanders now say that they want to migrate to other countries and foreign businessmen refuse to relocate to the mainland partly because of the pollution.
The new leadership under President Xi Jinping has shown more willingness to tackle pollution as it tries to slow the breakneck economic growth.
But the efforts have been half-hearted at best. Last month, the Communist Party held its landmark meeting and unveiled its blueprint which was supposed to bring the country's development to a new level.
It indeed contained some exciting grand goals and slogans including allowing the market forces to play "the decisive" role in the economy and boosting mainlanders' living standards. But it contains little on how to tackle environmental degradation.
Last week, photos comparing today's masked mainlanders wallowing in thick smog to the Londoners facing the similar situation in the 1950s and 1960s went viral on the internet. The smog killed thousands of people in Britain before the authorities there took decisive steps to introduce the Clean Air Act to bring pollution under control.
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