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Postby v4jr4 » Sat, 22 Jun 2013 5:48 pm

Strong Eagle wrote:
v4jr4 wrote:BTT: even if Singapore and Malaysia are affected with the smog, the situation in Riau is worse (CMIIW). Although last year the smog wasn't this bad, I just wonder why there's no permanent solution for this.


There is a permanent solution for this. Malaysia has already done it. Indonesia doesn't want to do it because it costs money and takes time. Corruption. Rather than burning the jungle, Malaysia cuts it down, then buries it into large trenches with bulldozers. It then takes about 3 years for the plant material to decompose, at which time the land can be used for oil palms.


And also, it's the "traditional" way (I want to say cheaper, but well, it is). But the thing is that there's no full control from the local officials. It keeps going on and on. Like you said, corruption "slaps" the practice :-|
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Postby JR8 » Sat, 22 Jun 2013 6:08 pm

Can I just check which measure is more commonly used?

I have been looking at the Air Quality Index (AQI), here:
http://aqicn.org/city/singapore/central/ Reading about 290-350 depending on the part of the country.

My wife said I should be using the the PSI figure (at the foot of the page) currently reading about 70.

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Postby v4jr4 » Sat, 22 Jun 2013 6:13 pm

JR8 wrote:Can I just check which measure is more commonly used?

I have been looking at the Air Quality Index (AQI), here:
http://aqicn.org/city/singapore/central/ Reading about 290-350 depending on the part of the country.

My wife said I should be using the the PSI figure (at the foot of the page) currently reading about 70.


Not sure about that, but from twitter, I see NEA provides such information in their website [http://weather.nea.gov.sg/MapControl.aspx?ds=PSIMaps]
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Postby Brah » Sun, 23 Jun 2013 11:32 am

Not sure what info we can trust, it says 90 around now, just came back from outside and my throat is not right and the smell is still very much there.

I don't mind looking silly with a mask on today.

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Postby sundaymorningstaple » Sun, 23 Jun 2013 1:33 pm

I've spent the entire morning till around 12:30 distributing n95s to the needy, infirm & elderly in our constituency. Still haven't worn one myself although yesterday till around 5 pm had a gravely throat, but that wasn't due to the haze but due to the good time had on Friday night! Thanks for a good gathering! After still walking up and down 13 floors of our various blocks, am none the worse for wear. ;-)

edited to correct type to N95
Last edited by sundaymorningstaple on Sun, 23 Jun 2013 2:23 pm, edited 1 time in total.

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Postby Brah » Sun, 23 Jun 2013 1:48 pm

sundaymorningstaple wrote:I've spent the entire morning till around 12:30 distributing n85s to the needy, infirm & elderly in our constituency. Still haven't worn one myself although yesterday till around 5 pm had a gravely throat, but that wasn't due to the haze but due to the good time had on Friday night! Thanks for a good gathering! After still walking up and down 13 floors of our various blocks, am none the worse for wear. ;-)

A noble act.

Next time I should chip in and do something like that, I'm pretty far removed from the needy masses though. And masks have been hard to come by.

I've heard of N95s but not N85s.

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Postby JR8 » Sun, 23 Jun 2013 2:06 pm

Brah wrote:I've heard of N95s but not N85s.


We've got N95s too, not sure the difference.

The filter is the size of a 2/5th slice of a baseball.

Two rubber bands.

Foam covered flexi-metal clip over nose on the inside...

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Postby sundaymorningstaple » Sun, 23 Jun 2013 2:22 pm

typo. :(

I hate my new keyboard but I'm not sure if it's the keyboard this new notebook or the new windows 8 as it seem to be similar to the problem windows 7 had when it first came out.

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Postby JR8 » Sun, 23 Jun 2013 9:37 pm

http://www.bbc.co.uk/news/world-asia-22998592
-------------------------------------------------------
Singapore haze hits record high from Indonesia fires

The BBC's David Shukman explains the impact and cause of the haze

Pollution levels soared for a third day in a row in Singapore, as smoky haze from fires in Indonesia shrouded the city state.

The Pollutant Standards Index (PSI) hit 401 at 12:00 on Friday (04:00 GMT) - the highest in Singapore's history.
-----------------------------------------------

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Postby uscate » Mon, 24 Jun 2013 6:46 am

You should be looking at the PM2.5 reading rather than relying solely on the PSI. As of 6AM today, PM2.5 is 146 in Southern Singapore....Unhealthy range.

Here's a link to the US Embassy Beijing (not Singapore - thanks guys) with suggestions as to how to reduce exposure: http://beijing.usembassy-china.org.cn/2 ... steps.html

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Postby JR8 » Mon, 24 Jun 2013 9:57 am

uscate wrote:You should be looking at the PM2.5 reading rather than relying solely on the PSI.


Can you clarify why that is?

I haven't had to deal with smog for quite a long time, and still trying to figure out what is what was all these varying readings and indices.

I'm just looking here...
http://aqicn.org/city/singapore/central/

And noticing the big/headline numbers...

Thx.

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Postby v4jr4 » Mon, 24 Jun 2013 10:06 am

uscate wrote:You should be looking at the PM2.5 reading rather than relying solely on the PSI. As of 6AM today, PM2.5 is 146 in Southern Singapore....Unhealthy range.

Here's a link to the US Embassy Beijing (not Singapore - thanks guys) with suggestions as to how to reduce exposure: http://beijing.usembassy-china.org.cn/2 ... steps.html


146? NEA [http://www.nea.gov.sg/psi/] posted PM2.5 104 in West side for 6AM reading.

Apart from that, can we say that the range for PM2.5 is similar to PSI? Means 50-100=moderate, and so on?
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Postby uscate » Mon, 24 Jun 2013 10:07 am

Hi JR8 -

I'm just learning about this myself, having gone out mask-less on Saturday and Sunday....

Here's something from the US EPA: http://www.epa.gov/pmdesignations/faq.htm#0

Taken from this website:

"Particles less than 10 micrometers in diameter (PM10) pose a health concern because they can be inhaled into and accumulate in the respiratory system. Particles less than 2.5 micrometers in diameter (PM2.5) are referred to as "fine" particles and are believed to pose the greatest health risks. Because of their small size (approximately 1/30th the average width of a human hair), fine particles can lodge deeply into the lungs.

One group at high risk is active children because they often spend a lot of time playing outdoors and their bodies are still developing. In addition, oftentimes the elderly population are at risk. People of all ages who are active outdoors are at increased risk because, during physical activity, PM2.5 penetrates deeper into the parts of the lungs that are more vulnerable to injury."

And from other things I've read in the last 24 hours:

If you have asthma or similar pulmonary issues, or if you have heart disease, a high PM2.5 reading can be especially problematic in either/both the long and/or short run, as not only do these particles lodge in the lungs, but they are also small enough to cross over into the bloodstream.

I was also watching ChannelNews Asia this morning, and they had an MD on who said that it was perhaps more important to pay attention to the PM2.5 readings than the PSI (although that is also important). This may be especially important if you fall into any of the above risk categories.

I'm by no means well versed in this, but hope this info helps -

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Postby uscate » Mon, 24 Jun 2013 10:15 am

And I don't know if the PM2.5 count is similar to the PSI. I checked the NEA site, and there's nothing that I could find posted re: PM2.5, and this other site (http://aqicn.org/city/singapore/central/) is the only one I found with the PM2.5 readings listed (along with the classification), but I haven't been able to find a chart that lists the number ranges and classifications.

Maybe someone else will have better luck diving further into this issue. Right now it's enough for me to know that masks are still important as a clear-ish sky doesn't necessarily mean all's well.

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Postby the lynx » Mon, 24 Jun 2013 10:17 am

uscate wrote:And I don't know if the PM2.5 count is similar to the PSI. I checked the NEA site, and there's nothing that I could find posted re: PM2.5, and this other site (http://aqicn.org/city/singapore/central/) is the only one I found with the PM2.5 readings listed (along with the classification), but I haven't been able to find a chart that lists the number ranges and classifications.

Maybe someone else will have better luck diving further into this issue. Right now it's enough for me to know that masks are still important as a clear-ish sky doesn't necessarily mean all's well.


I think you missed it. Here it is: http://app2.nea.gov.sg/anti-pollution-radiation-protection/air-pollution/psi/psi-readings-over-the-last-24-hours


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