• Sat
  • Aug 30, 2014
  • Updated: 1:07am

Particulate

Lai See

Heat warning well and good, but what about the killer air?

Wednesday, 15 August, 2012, 10:51pm

Two detained for internet claims over yellow cloud

Two men have been detained in Wuhan for spreading rumours online that an unusual yellowish haze enveloping most of the city on Monday was generated by a furnace explosion or leak from a chemical plant. Authorities insist it was caused by the burning of corn stalks.

13 Jun 2012 - 12:00am

Beijing releases data on fine particles

Beijing environmental authorities yesterday began releasing hourly air pollution readings for PM2.5 - health-threatening fine particles with a diameter less than 2.5 microns - fulfilling a promise of publicising them before the Lunar New Year, under intense public pressure.

22 Jan 2012 - 12:00am

Challenge leaves us all out of breath

The immensity of the challenge facing environmental officials responsible for cleaning the city's air has been exposed by a study which has matched their latest targets with last year's air quality figures.

The worst discrepancy is for nitrogen dioxide, a pollutant generated mainly by vehicles.

19 Jan 2012 - 12:00am

Fine particles nearly 10 times WHO ceiling

Yang Changjiang did not realise how much Beijing's air quality had deteriorated until he tested it himself. Using a hand-held detector, the veteran environmental reporter and his family began a 10-day experiment early last month. They stood at the side of the road in the capital's Zhongguancun district, testing for fine airborne particles up to 2.5 microns in diameter called PM2.5.

12 Dec 2011 - 12:00am

Smog and fog raise health fears

Thick fog and smog that have blanketed much of northern China over the past three days are likely to persist at least until tomorrow, meteorological authorities warned yesterday.

Hundreds of flights were cancelled in Beijing and most roads in the capital's eastern and southern regions were forced to close because of poor visibility.

6 Dec 2011 - 12:00am

Lack of political will responsible for the polluted air we breathe in HK

I refer to the letter by Pang Sik-wing of the Environmental Protection Department ('Defending cleaner air measures', November 24) in response to a number of articles in Lai See.

2 Dec 2011 - 12:00am

Greens put HK air 'shame' on the map

The level of fine particles - specks of pollutants that can penetrate the lungs - in Hong Kong's air is among the worst in more than 500 cities and at least 20 times that of the cleanest metropolis.

25 Nov 2011 - 12:00am

New pollution figures on way ... in five years

The mainland's top environmental watchdog has finally unveiled a timetable for long-awaited reform of outdated air pollution standards amid mounting public pressure.

But instead of directly answering calls for immediate public access to official data on smog-related fine particles, the environmental ministry set a distant deadline of 2016 for its mandatory release.

24 Nov 2011 - 12:00am

Access to full smog data still out of sight

The heated debate over public access to key smog-monitoring data has taken another turn, with the mainland's top environment official putting a damper on hopes that more complete standards are imminent.

17 Nov 2011 - 12:00am

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