Falling haze index hides a shift in current exposure
By OnTheRice · Sources and limitations · Report a correction
Singapore's rolling haze index eased while some current regional particle readings worsened. OTR would check both over 24 hours; two points do not prove a lasting trend or its cause.
Research reference · source time Not applicable · not a current quote or execution price
Source confidenceMedium for recorded observations; forecast probability uncalibrated.
Published through Sites . The forecast window starts at its frozen preparation time above.
What’s changing?
We find that Singapore’s pollution burden is moving between regions even while the rolling PSI improves. OTR’s 10:00 SGT readings on 8 October put one-hour PM2.5 at north 40, south 25, west 68, east 45 and central 62 micrograms per cubic metre. At 13:00 SGT, the official feed showed 21, 70, 61, 65 and 69 respectively, updated at 13:45:51 SGT. South, east and central readings rose while north and west eased. Every region’s rolling 24-hour PSI also eased between the OTR 11:00 snapshot and 13:00. These measures answer different questions. A falling rolling index does not mean the air is improving at every location right now.
Key points
- We see regional divergence rather than a proven nationwide recovery.
- We would check current regional readings before planning outdoor work or activities.
- We keep one-hour concentrations separate from the rolling 24-hour PSI.
What could change this view?
- Later hourly readings could reverse this pattern. We have two comparison points rather than proof of a lasting trend or its cause.
Bottom line
We prioritise these practical checks over 24 hours.
Its source facts and prices still need independent checks.
Terms in simple English
These explanations help you read this signal. The saved forecast, prices, deadline and outcome rules stay the same.
- Asset or investible
- Something that can be bought or sold, such as a share, bond, fund, currency or cryptocurrency.
- Probability
- An estimate of how likely an outcome is. For example, 60% means about six chances in ten, not certainty.
- UTC and SGT
- UTC is a world time standard. SGT is Singapore time, eight hours ahead of UTC.
- PSI or PM2.5
- PSI is Singapore’s air-quality index. PM2.5 means very small airborne particles; their concentration differs from the PSI score.
How likely is this call? · Three frameworks
This signal has no investible bullish or bearish call. A market-direction percentage does not apply.
Evidence behind this view
Checks whether separate pieces of evidence support the same view.
We compared two fully read OTR Singapore records with official PM2.5 and PSI payloads dated 8 October 2026, 13:00 SGT, updated 13:45:51 SGT.
What past price moves show
Compares today’s price moves with recorded past patterns.
We make no investment price call here. Price behaviour cannot establish this non-market outcome.
Evidence against this view
Shows evidence and risks that could challenge this view.
North and west one-hour readings improved, while all regional rolling PSI readings eased. We cannot predict persistence from these snapshots alone.
Why the direction changed
Explains recorded changes from expecting a rise to expecting a fall, or the reverse.
We have not verified an earlier locked forecast for this exact thesis. Similar older topics are context, not independent new evidence.
What people say vs the facts
Compares recorded public discussion with checked market facts.
We cannot verify a current social-media consensus. A claim that the haze is improving everywhere would not match the one-hour regional figures.
How past forecasts performed
Shows recorded forecast results and what they can teach us.
We found no matched historical forecast outcomes in the Singapore files read. Price-pattern testing does not apply to this non-investment signal.
Sources, original wording and price checks
Author-submitted research. The underlying facts and market prices have not been independently verified.
Original research record
We find that Singapore’s pollution burden is moving between regions even while the rolling PSI improves. OTR’s 10:00 SGT readings on 8 October put one-hour PM2.5 at north 40, south 25, west 68, east 45 and central 62 micrograms per cubic metre. At 13:00 SGT, the official feed showed 21, 70, 61, 65 and 69 respectively, updated at 13:45:51 SGT. South, east and central readings rose while north and west eased. Every region’s rolling 24-hour PSI also eased between the OTR 11:00 snapshot and 13:00. These measures answer different questions. A falling rolling index does not mean the air is improving at every location right now.
We find that Singapore’s pollution burden is moving between regions even while the rolling PSI improves. OTR’s 10:00 SGT readings on 8 October put one-hour PM2.5 at north 40, south 25, west 68, east 45 and central 62 micrograms per cubic metre. At 13:00 SGT, the official feed showed 21, 70, 61, 65 and 69 respectively, updated at 13:45:51 SGT. South, east and central readings rose while north and west eased. Every region’s rolling 24-hour PSI also eased between the OTR 11:00 snapshot and 13:00. These measures answer different questions. A falling rolling index does not mean the air is improving at every location right now.
We see regional divergence rather than a proven nationwide recovery. We would check current regional readings before planning outdoor work or activities. We keep one-hour concentrations separate from the rolling 24-hour PSI.
Later hourly readings could reverse this pattern. We have two comparison points rather than proof of a lasting trend or its cause.
We prioritise these practical checks over 24 hours.
OTR Database Data https://api-open.data.gov.sg/v2/real-time/api/pm25 https://api-open.data.gov.sg/v2/real-time/api/psi
Not applicable
Research coverage: Six agents researched this update. Full text was retrieved across accessible OTR files and raw records were parsed; semantic review was selective. Remaining archive retrieval errors are disclosed in the full report. These are further cross-file research assessments. Related topics and repeated sources in earlier editions do not become independent evidence. Technical and social primary pages could not be newly reopened. Their observations are attributed to dated OTR Database Data; code changes do not prove release, adoption or incident prevalence. Five investment candidates remain private drafts: no tested probability model or verified exact publication-price lock was found. Reference quotes appear in the report with their own timestamps. Non-investment cards make no asset-price direction call. Their market-direction percentage is not applicable.
Forecast prepared
First published through Sites 08 Oct 2026, 14:27:38 SGT
No explicit investible BULLISH or BEARISH call on this card.
What changed
Recorded public historyWe find that Singapore’s pollution burden is moving between regions even while the rolling PSI improves. OTR’s 10:00 SGT readings on 8…
This is the first recorded public view. Further public updates will appear here.
- Falling haze index hides a shift in current exposure
We find that Singapore’s pollution burden is moving between regions even while the rolling PSI improves. OTR’s 10:00 SGT readings on 8 October put one-hour PM2.5 at north 40, south 25, west 68, east 45 and central 62 micrograms per cubic metre. At 13:00 SGT, the official feed showed 21, 70, 61, 65 and 69 respectively, updated at 13:45:51 SGT. South, east and central readings rose while north and west eased. Every region’s rolling 24-hour PSI also eased between the OTR 11:00 snapshot and 13:00. These measures answer different questions. A falling rolling index does not mean the air is improving at every location right now.
Forecast prepared: 8 Oct, 14:07 SGTPublished by OTR: 8 Oct 2026, 14:27 SGT
Why the view changed
This is the first recorded view. Future source-backed updates will appear here.
Evidence, memory & review 2 linked sources
Directional takeaway: N/A
OTR reasoning: We find that Singapore’s pollution burden is moving between regions even while the rolling PSI improves. OTR’s 10:00 SGT readings on 8 October put one-hour PM2.5 at north 40, south 25, west 68, east 45 and central 62 micrograms per cubic metre. At 13:00 SGT, the official feed showed 21, 70, 61, 65 and 69 respectively, updated at 13:45:51 SGT. South, east and central readings rose while north and west eased. Every region’s rolling 24-hour PSI also eased between the OTR 11:00 snapshot and 13:00. These measures answer different questions. A falling rolling index does not mean the air is improving at every location right now.
Counterpoint: Later hourly readings could reverse this pattern. We have two comparison points rather than proof of a lasting trend or its cause.
Source trail
- api-open.data.gov.sg/v2/real-time/api/pm25 ↗api-open.data.gov.sgSee exact source and OTR Database Data; date-only sources retain date-only precision.
- api-open.data.gov.sg/v2/real-time/api/psi ↗api-open.data.gov.sgSee exact source and OTR Database Data; date-only sources retain date-only precision.
Review status: SOURCE RESEARCH WITH DISCLOSED LIMITS
This evidence panel does not assign a score or probability. Any forecast estimate is shown separately with its own source and limitations.