Air purifier?

[chuanz]

11am NEA 1hr pm2.5 readings 64 - 80+ ug/m3. Salah leh especially 3hr psi remains at 68, never even up a single point from 10am reading.

Dafag NEA... make the chart got erecshion...

 

[Topaz8]

gave face masks got use? why not issue N95 mask even though it more expensive but got more use than face mask...

read the news few weeks ago... Hercules aircraft was remove from activities to attend army event... instead of using it for artificial rain...

The "Human causing Haze" for agriculture needs have been going on for decades. Sgp has donated tons of money and send numerous "letters/telegrams/emails" but of nominal effect.

This is like "Environmental Terrorism" that uses the haze to cause health and economic issues to others nation eg small dot that is economically advancing. The Haze goes on twice a year and the more affluent have the means to mitigate such occurrences, whereas, the poor as just collateral damages.

 

[tmkedmw]

Fairly big spike just now, no wonder i was looking out of the office and i saw all blurry, thought it was rain. Well it was rain, but it was mixed with fairly moderate haze.

83ug/m3 and 1-hr PSI of 129 for West. 60+ ug/m3 and low 100s (PSI) for the other regions.
...

Spike wrong reading. Corresponding 3hr psi never move up lah. Also, I was out in the open at that time and hardly got haze with good visibility.

 

[arcanisjk]

Not sure if this is the right place to share this..

I have one extra set of air purifier. refer to below thread:

http://forums.hardwarezone.com.sg/g...-novita-air-purifier-nap501-$240-4847045.html

 

[WussRedXLi]

11am NEA 1hr pm2.5 readings 64 - 80+ ug/m3. Salah leh especially 3hr psi remains at 68, never even up a single point from 10am reading.

Spike wrong reading. Corresponding 3hr psi never move up lah. Also, I was out in the open at that time and hardly got haze with good visibility.

Dafag NEA... make the chart got erecshion...

Too bad not at home, else shd be able to give more details. But the visibility really dropped just now prior to the showers, and maybe during the showers.

99.999% of the people out there look at the 3-hr moving avg leh, on apps and nea first page.

 

[tmkedmw]

Too bad not at home, else shd be able to give more details. But the visibility really dropped just now prior to the showers, and maybe during the showers.

99.999% of the people out there look at the 3-hr moving avg leh, on apps and nea first page.

I know the exact answer now.
I CSI liao. NEA wrong data entry. If u look at 11am 24hr pm2.5 in PSI (bracketed numbers), they are exactly the same as the 11am 1hr pm2.5 numbers!!!

 

[WussRedXLi]

Yeah huh...same figures for 11AM.

Wah lao, that means it's not automated batch job. It's manual.
No wonder it ranges from 2 mins to 20 mins update time after the hour.

24/7 got pax there keying the thing in.

Siong.

 

[wizardundo]

Doing shopping at Qoo10 and noticed price increase for the Sharp A28E..

Price increased by $5/-


*Edit to add this..

Too many orders

 

[tmkedmw]

Yeah huh...same figures for 11AM.

Wah lao, that means it's not automated batch job. It's manual.
No wonder it ranges from 2 mins to 20 mins update time after the hour.

24/7 got pax there keying the thing in.

Siong.

Learn 2 new things today from websai
1. PSI = ug/m3. (Chuanz better apply this new discovery in your graph hoh )

2. 24hr = 1hr

Rofl

 

[WussRedXLi]

South 2pm = 2 ug/m3. AQI 8. PSI 8

Swee.

 

[NWT1978]

The "Human causing Haze" for agriculture needs have been going on for decades. Sgp has donated tons of money and send numerous "letters/telegrams/emails" but of nominal effect.

This is like "Environmental Terrorism" that uses the haze to cause health and economic issues to others nation eg small dot that is economically advancing. The Haze goes on twice a year and the more affluent have the means to mitigate such occurrences, whereas, the poor as just collateral damages.

think they start the burning in 1997... another 3 years they be burning activities for 2 decades... during the years... they didnt learn their lessons...

see generations continue their burning activities and future generations will continue to do so...as they see their previous generations are not caught and punished harshly...

the neighbouring countries can only LLST... despite SG also got provide resources to help them but still they burn... do they want to burn their whole country into ashes?

and do they want to test their healthcare system? to see how many of their people can squeeze or visit their healthcare system before it crash from overload... even their economy suffer too... guess they also want to test how much their economy can take before it crash too...

before it crash...later Mother nature not happy with it... their results are usually more spectacular....

 

[WussRedXLi]

think they start the burning in 1997... another 3 years they be burning activities for 2 decades... during the years... they didnt learn their lessons...

1991 also got. 1994, 1995. Seemingly thick haze also.

 

[NWT1978]

I know the exact answer now.
I CSI liao. NEA wrong data entry. If u look at 11am 24hr pm2.5 in PSI (bracketed numbers), they are exactly the same as the 11am 1hr pm2.5 numbers!!!

no time to check or faulty equipments or since haze almost gone...they close both eyes to do the checking?

anyway... wait for next yr haze to come...

or there could be another ones later this yr... seeing how they like to burn... sooner or later they start third round this yr...

 

[NWT1978]

1991 also got. 1994, 1995. Seemingly thick haze also.

then they burning for longer than 2 decades... still havent learn anything...

 

[WussRedXLi]

AIR QUALITY DURING HAZE EPISODES

During the 1990s, five separate haze episodes (1990, 1991, 1994, 1997 and 1998) occurred in Southeast Asia. Although not a new phenomenon, as haze in the area dates back to at least the early 1980s and even 1960s (Rindam, 1995), the increasing frequency is of great concern. Figure 1 depicts estimated PM10 levels in Sarawak for the period of 1978 to 1997. The haze episodes of 1991, 1994 and 1997 are clearly evidenced by the increases in PM10. This figure is based upon PM10 estimated from visibility. A quantitative relationship exists between visibility and the amount of particles in the air, though it is confounded by moisture. An equation for predicting the amount of PM10 in the atmosphere can be developed by using this association (Brook, 1998). Data on visibility, humidity and PM10 at stations in Sarawak, Malaysia were used to determine a linear equation for PM10 (Brook, 1998). Potential sources of error in these estimates are that the correction factors were not derived for particles from vegetation fires, and the subjective nature of visibility measurements. Nonetheless, the equation is useful for identifying peak PM10 concentrations. All of the haze episodes discussed are the result of biomass burning.
Many of the air quality concentrations reported in the literature for haze episodes are based on measurements of total particulate. In order to standardise the data, TPM, SPM and TSP are converted to PM10. The ratio of PM10 to total particulate varies depending on the stage of combustion, but the United States Environmental Protection Agency estimates that 92.8% of particulates from agricultural burning are less than 10 µm (Environmental Assessment pm_vol1.htm). Also, Ward (1990) suggests that up to 95% of particulate matter is less than 2.5 µm. Therefore, we assume that 90% of total particulate matter is smaller than 10 µm and use this to convert all measured TPM, TSP and SPM values to estimated PM10 concentrations. Original measurement values are reported in parentheses.

1990

For a period of two weeks during 1990, haze affected areas of peninsular Malaysia resulting in reduced visibility and an increase in particulate concentrations. The episode began around the middle of August and lasted until the end of that month. A sudden decrease in visibility occurred on 21 August, with values as low as 1 km over the central states of peninsular Malaysia (Tussin, 1995). Levels of particulates increased starting from 15 August. Peak 24-hour values of PM10 were equivalent to 426 µg/m3 (TSP=473.8 µg/m3) in Petaling Jaya (Tussin, 1995) and 464 µg/m3 (TSP=516 µg/m3) in the Klang Valley (Rindam, 1995). These quantities were up to four times the mean levels measured during non-haze periods (Tussin, 1995).

1991

Two separate haze episodes occurred in Malaysia during 1991. The first, which will not be discussed further, took place in June as the result of the injection of ash from the volcanic eruption of Mt Pinatubo (Tussin, 1995; Hassan et al, 1995). The second, at the end of September and lasting through most of October, was more severe and was the result of biomass burning from forest fires (Tussin, 1995). The latter episode included two phases separated by a rainy period: from September 27 until October 11, and a less severe event from 22 to 31 October (Tussin, 1995; Hassan et al, 1995). The impact of the haze was most evident in Malaysia (Hassan et al, 1995). Locations in western Borneo reported visibility of less than 2 km after 2 October (Tussin, 1995). Days of low visibility corresponded to high concentrations of particulate matter (Hassan et al, 1995). 24-hour PM10 values in Kuala Lampur, Malaysia ranged from 102 µg/m3 to 254 µg/m3 (SPM=113 µg/m3 to 282 µg/m3) for the first period of 4 to 11 October and 95 µg/m3 to 153 µg/m3 (SPM=105 to 170 µg/m3) for 23 to 30 October (Hassan et al, 1995). These values were significantly higher, up to three times the normal mean (Tussin, 1995), than those for the rest of the month (Hassan et al, 1995). In Petaling Jaya, peak 24-hour averages were 445 µg/m3 (SPM=494.5 µg/m3) on 30 September and 441 µg/m3 (SPM=489.8 µg/m3) on 8 October (Tussin, 1995).

1994

After two years of relatively haze-free air quality in 1992 and 1993, fires in 1994 brought haze again to the Singapore-Malaysia-Indonesia region (Nichol, 1997). The area affected by the smoke spanned approximately 3 million square kilometers (Nichol, 1997). The haze lasted from August to October in Indonesia, Malaysia (Hassan et al, 1995), Brunei (Radojevic and Hassan, 1999) and Singapore (Chia et al, 1995; Nichol, 1997). Most of the available information comes from Malaysia. Visibility was reduced to 1 km in Malaysia with a minimum of 0.3 km in Petaling Jaya, as compared to 30 km under normal conditions (Rindam, 1995). Some measurements also suggest that the haze in 1994 was worse than in previous years in Malaysia (Rindam, 1995). The highest 24-hour average PM10 reading reported in Petaling Jaya was 410 µg/m3 (TSP=454.5 µg/m3) on 30 September (Tussin, 1995), while in Kuala Lampur, PM10 reached 409 µg/m3 on 5 October (Hassan et al, 1995). In Singapore, 24-hour average PM10 concentrations peaked above 250 µg/m3 (PSI>150) on 13 and 27 September and 29 October (Nichol, 1997). Concentrations of other particulate constituents such as sulphur, potassium, titanium, vanadium, manganese, nickel, arsenic and lead were 3-6 times higher than average during the haze period in late October (Orlic et al, 1997). The forest fires, though, did not have a significant influence on the levels of PAHs in Singapore (Chee et al, 1997).

1997

The 1997 fires in Indonesia drew worldwide attention as the haze impacted Malaysia, Singapore, southern Thailand and the Philippines and lasted from June through until November. As early as the beginning of May, air quality began to deteriorate in Singapore (Nichol, 1998). 24-hour average concentrations in Singapore peaked at approximately 230 µg/m3 (PSI=140) on 19 and 29 September (Nichol, 1998). These particulate levels in Singapore were not any more severe than those associated with the 1994 forest fires (Nichol, 1998). In Sarawak, however, 24-hour average PM10 peaked as high as 930 µg/m3 on 23 September (Nichol, 1998), which represents a value more than 15 times the normal levels (Brauer and Hashim-Hisham, 1998). Due to the location of fires and direction of the wind, Sumatra and Kalimantan in Indonesia were the most severely affected areas (Pinto et al., 1998). Daily averaged concentrations of PM10 reached as high as 3546 µg/m3 (TPM=3940 µg/m3) in Sumatra at the end of September (Heil, 1998). The concentrations were even higher in Kalimantan, on the island of Borneo, with a 24-hour maximum of 3645 µg/m3 (TPM=4050 µg/m3) (Heil, 1998). Even at the beginning of November in Palembang when the air quality was improving, daily PM10 and PM2.5 still exceeded the US NAAQS (Pinto et al., 1998). Aircraft measurements performed during this episode indicated that the smoke plume reached an altitude of 4 km and included high concentrations of O3, NOx and CO along with aerosols. In the lower layer of the plume, visibility was less than 500m (Tsutsumi et al, 1999).

1998

With the persistence of the El Niño that started in 1997 and an abnormally short wet season (Levine et al, 1999), forest fires raged again in 1998 and resulted in another, more localized, haze event (Radojevic and Hassan, 1999). In this case, the episode was most acute on Borneo and particularly in Brunei. The haze first emerged on 1 February and remained until 30 April, with especially severe conditions at the beginning of April. Daily average concentrations in the capital, Bandar Seri Begawan, reached nearly 450 µg/m3 and the 24 hour guideline for PM10 of 70 µg/m3 was exceeded 54 times during the period of 1 February to 30 April (Radojevic and Hassan, 1999). The "warning stage," which is associated with a PSI value of 300 (24-hour average PM10 concentrations of 420 µg/m3), was exceeded on 15 April (Radojevic and Hassan, 1999). During the 1998 episode in Brunei, PM10 was the only significant pollutant contributing to the haze (Radojevic and Hassan, 1999). Other gaseous pollutants such as SO2, O3 and NO2 were within acceptable limits, and only the 8 hr guideline for CO was exceeded on several occasions (Radojevic and Hassan, 1999). In Miri, Sarawak, Malaysia, 24-hour average PM10 concentrations rose above 600 µg/m3 (API=649) on March 30 (WHO, 1998).

 

[WussRedXLi]

no time to check or faulty equipments or since haze almost gone...they close both eyes to do the checking?

anyway... wait for next yr haze to come...

or there could be another ones later this yr... seeing how they like to burn... sooner or later they start third round this yr...

As long as it's dry, they will burn. ie like this year Feb and March which had a haze episode many times worse than this one. You remember that time Singapore was without rain for nearly 2 months?

But the winds were in our favour (NE monsoon).

http://theneoearth.com/blog/2014/03/when-the-drought-hits-singapore/

The recent dry spell has certainly taken a toll on the island. I’ve never seen as much of a destruction to trees, shrubs, and turfs of grass as this “drought” even when the worst of floods hit Singapore in our recent history. The dry spell certainly highlighted our strengths, but most importantly our weakness as a nation. Singaporeans are not only ill-prepared but wasteful.

We have already seen the level of preparedness demonstrated by general Singaporeans when the worst haze in our history struck the island last year. The government was well prepared with stocks of emergency supplies – albeit a better distribution plan, but people were not only unprepared, they were also irresponsible. While calling the government a liar for providing inaccurate data – which I thought the officials could have provided a better retort for, people were actually going about their daily activities unprotected. On my way home on the night when the haze crossed 400 PSI for the first time, I actually saw a long queue of vehicles outside the McDonald’s at King Albert Park with people waiting to buy the Hello Kitty plush toy. Over the next few days while people continued to call for the government to publish “more accurate data”, I continue to see people jogging and strolling in the parks, along the roads.

This dry spell made me realize that Singaporeans do not even know what hit them even when the worst hits.

 

[WussRedXLi]

>> “The only hope is asking Allah for rain,” South Sumatra Governor Alex Noerdin told reporters in Palembang on Wednesday.

He is correct. For us it's Mother Nature. Were there any doubts in the first place when we already know it's Peat underground fires?


South Sumatra gives up on haze despite help

Ansyor Idrus, The Jakarta Post, Palembang | Archipelago | Thu, October 16 2014, 10:23 AM

The South Sumatra administration seems to be losing hope as all its efforts to resolve the haze emitted from its land have been fruitless.

“The only hope is asking Allah for rain,” South Sumatra Governor Alex Noerdin told reporters in Palembang on Wednesday.

Alex admitted that his administration was overwhelmed and had given up trying to extinguish fires on 7,000 hectares of peatland in nearby Ogan Komering Ilir regency, which were producing the haze that had blanketed Palembang.

He said it would need rain for seven consecutive days to douse the fires in the peatland.

Thousands of residents performed shalat istisqa (Islamic prayer to ask for rain) on Tuesday in a desperate effort to tackle the haze. Hours after the prayer, light rain reportedly fell in several areas in the city, slightly reducing the density of the fog.

Meanwhile, the National Disaster Mitigation Agency (BNPB) has deployed nine helicopters to extinguish a number of forest fire points on peatland across the country.

“The choppers have been deployed to water bomb hot spots which are difficult to reach for the Manggala Agni fire-fighting unit,” said BNPB chief spokesman Sutopo Purwo in Jakarta on Wednesday.

He added four helicopters had been deployed to South Sumatra, three to Central Kalimantan and one each to Riau and West Kalimantan.

BNPB has also conducted cloud seeding to create artificial rain to minimize the number of hot spots.

“We have carried out several measures, including weather modification, direct fire fighting and water bombing from aircraft,” said Sutopo.

He added that to overcome the forest and peatland fires, the BNPB and the Agency for the Assessment and Application of Technology (BPPT) had seeded clouds in Kalimantan on Sept. 18 and in South Sumatra on Sept. 21 from an Air Force Hercules aircraft.

The Indonesian Military (TNI) had also deployed 2,200 personnel, backed by 1,050 police personnel, to assist the Regional Disaster Mitigation Agency (BPBD) and Manggala Agni to fight the fires in September.

Meanwhile the Bengkulu Meteorology, Climatology and Geophysics Agency (BMKG) forecaster, Diah Novita Astuti, said on Wednesday the haze covering the city for the past three days was still categorized as safe for people’s health.

However, she added, members of the public had been urged to remain vigilant by wearing masks if they wished to be outdoors.

Diah said in general the weather in the next three days would be cloudy followed by light rain.

“Light rain is possible, especially in the west of Bengkulu province. Currently, visibility in Bengkulu city stands at 1,500 meters as the haze is being carried by wind from the east,” she added.

Diah said the haze had originated from South Sumatra because no hot spots had been found in Bengkulu.

“It’s normal for Bengkulu to receive haze from other areas,” she added. The haze in Bengkulu city is affecting visibility and respiration.

“I have sensed the presence of the haze for the past five days. I have given my children masks to wear when they go to school,” said Bengkulu city resident Usman.

 

[NWT1978]

>> “The only hope is asking Allah for rain,” South Sumatra Governor Alex Noerdin told reporters in Palembang on Wednesday.

He is correct. For us it's Mother Nature. Were there any doubts in the first place when we already know it's Peat underground fires?


South Sumatra gives up on haze despite help

Ansyor Idrus, The Jakarta Post, Palembang | Archipelago | Thu, October 16 2014, 10:23 AM

The South Sumatra administration seems to be losing hope as all its efforts to resolve the haze emitted from its land have been fruitless.

“The only hope is asking Allah for rain,” South Sumatra Governor Alex Noerdin told reporters in Palembang on Wednesday.

Alex admitted that his administration was overwhelmed and had given up trying to extinguish fires on 7,000 hectares of peatland in nearby Ogan Komering Ilir regency, which were producing the haze that had blanketed Palembang.

He said it would need rain for seven consecutive days to douse the fires in the peatland.

Thousands of residents performed shalat istisqa (Islamic prayer to ask for rain) on Tuesday in a desperate effort to tackle the haze. Hours after the prayer, light rain reportedly fell in several areas in the city, slightly reducing the density of the fog.

Meanwhile, the National Disaster Mitigation Agency (BNPB) has deployed nine helicopters to extinguish a number of forest fire points on peatland across the country.

“The choppers have been deployed to water bomb hot spots which are difficult to reach for the Manggala Agni fire-fighting unit,” said BNPB chief spokesman Sutopo Purwo in Jakarta on Wednesday.

He added four helicopters had been deployed to South Sumatra, three to Central Kalimantan and one each to Riau and West Kalimantan.

BNPB has also conducted cloud seeding to create artificial rain to minimize the number of hot spots.

“We have carried out several measures, including weather modification, direct fire fighting and water bombing from aircraft,” said Sutopo.

He added that to overcome the forest and peatland fires, the BNPB and the Agency for the Assessment and Application of Technology (BPPT) had seeded clouds in Kalimantan on Sept. 18 and in South Sumatra on Sept. 21 from an Air Force Hercules aircraft.

The Indonesian Military (TNI) had also deployed 2,200 personnel, backed by 1,050 police personnel, to assist the Regional Disaster Mitigation Agency (BPBD) and Manggala Agni to fight the fires in September.

Meanwhile the Bengkulu Meteorology, Climatology and Geophysics Agency (BMKG) forecaster, Diah Novita Astuti, said on Wednesday the haze covering the city for the past three days was still categorized as safe for people’s health.

However, she added, members of the public had been urged to remain vigilant by wearing masks if they wished to be outdoors.

Diah said in general the weather in the next three days would be cloudy followed by light rain.

“Light rain is possible, especially in the west of Bengkulu province. Currently, visibility in Bengkulu city stands at 1,500 meters as the haze is being carried by wind from the east,” she added.

Diah said the haze had originated from South Sumatra because no hot spots had been found in Bengkulu.

“It’s normal for Bengkulu to receive haze from other areas,” she added. The haze in Bengkulu city is affecting visibility and respiration.

“I have sensed the presence of the haze for the past five days. I have given my children masks to wear when they go to school,” said Bengkulu city resident Usman.

but who started the fire first? now cannot put out and give up? do they want to continue burning for longer time and hope the fire will put out soon?

 

[WussRedXLi]

but who started the fire first? now cannot put out and give up? do they want to continue burning for longer time and hope the fire will put out soon?

Usually is burn when there is a dry bout (small timers) but based on experience that the rains will come when and when.

When El nino comes or extended dry season, then halleluja.

That's why this year's Feb and March caught everyone by surprise.

By now, 2014 is way more serious than 2013.

 

[WussRedXLi]

Still not wet enough lah... Kalimantan got improvement though.