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Pollution fatigue

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  1. #11

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    Quote Originally Posted by penguinsix:
    In case you are curious the worst air in Hong Kong at the moment as of the last readings was in Tung Chung and the reporting station in Yuen Long way up in the NT is at levels higher than Central right now.

    It's a pretty yucky day all over.
    What are you measuring?

    http://www.epd-asg.gov.hk/

  2. #12

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    Here, more info as of 10am:

    http://www.epd-asg.gov.hk/english/24..._Long_fsp.html
    http://www.epd-asg.gov.hk/english/24...Chung_fsp.html
    http://www.epd-asg.gov.hk/english/24...ntral_fsp.html

    YL and TC has relatively higher Ozone, SO2, Carbon Monoxide

    Central has higher concentration for CO2

    Last edited by Creative83; 18-10-2012 at 11:29 AM.
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  3. #13

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    I see I picked a good day for riding to work..


  4. #14

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    I work in Tuen Mun and the smog has been terrible here this week. Its not just an HK island problem.

    dear giant likes this.

  5. #15

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    Way too many buses on the street.


  6. #16

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    Quote Originally Posted by Creative83:
    What are you measuring?

    http://www.epd-asg.gov.hk/
    I was looking at the PM2.5 measurements, primarily, which the government releases quietly but does not incorporate into their API readings (at this time). I was then assessing those PM2.5 measurements against World Health Organization standards, which showed we were at something like 250% of the maximum in Tung Chung and 211% of the maximums in Central.

    Central's current pollutant is Nitrogen Dioxide, whereas Tung Chung is PM2.5. The WHO standards for nitrogen are not as strict as PM2.5, so you get a situation where by the API Central is higher with NO2, but when you factor in PM2.5 Tung Chung has a higher W.H.O. score (because the HK API calculations are absent PM2.5, for the moment). Gets a bit apples and oranges though at times.

    It is worth noting that for PM2.5 and PM10, the standards are based on a 24-hour average, so the heavier pollution from yesterday can affect the scores. So while the Tung Chung PM2.5 is currently at 258% of the maximums on a 24 hour basis, if you look at it on a one-hour 'spot' reading we are only at 210% of the maximums. In fact, in about three or four hours, the PM2.5 24-hour average readings for Tung Chung should drop significantly as a 'spike' from yesterday afternoon is factored out of the equation.

    Here is the app I made for this. One day I'll finish the Android version:
    https://itunes.apple.com/us/app/hong...6152?ls=1&mt=8
    Last edited by penguinsix; 18-10-2012 at 11:56 AM.
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  7. #17

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    Agree about the buses. Why aren't they all switched over to LPG, surely the Govt. could give incentives to switch over like the taxis and mini-buses?

    Also give much lower vehicle tax banding for big trucks that are converted to LPG.


  8. #18

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    Quote Originally Posted by penguinsix:
    I was looking at the PM2.5 measurements, primarily, which the government releases quietly but does not incorporate into their API readings (at this time). I was then assessing those PM2.5 measurements against World Health Organization standards, which showed we were at something like 250% of the maximum in Tung Chung and 211% of the maximums in Central.
    Where are the government PM2.5 figures? I have looked at the API scores before, but consider them a useless because they are so crudely aggregated into a single figure.

    And get please cracking with that Android version

  9. #19

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    The government PM2.5 figures are on the links provided by Creative83. They call PM10 'RSP' and PM2.5 'FSP'

    jgl likes this.

  10. #20

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    Quote Originally Posted by Creative83:
    What are you measuring?

    http://www.epd-asg.gov.hk/
    visibility, yesterday you could not even see the airport from mountain top

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