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Merriwa PM2.5 monitor

Hourly government air-quality observations from NSW DCCEEW.

New South Wales · -32.1266, 150.4582 · observed · Government monitor

Official NSW DCCEEW station page

1.2Latest hourly PM2.5 · µg/m³Good · <12.5 µg/m³
2.112-hour NowCast · µg/m³Derived concentration, not an Australian AQI
3.2Rolling 24 hours · µg/m³47 stored readings in this page window
GoodModel peak · next 24 h5.6–7.4 µg/m³ · GEOS-CF, CAMS and SILAM

What this monitor reports

1.2 µg/m³ is Good on the one-hour PM2.5 air quality scale. Current hourly reading.

The monitor belongs to NSW DCCEEW. Readings may be preliminary and revised by the agency.

The category applies only to the latest one-hour reading. It follows the Australian enHealth framework used by agencies including NSW, Victoria and Queensland. The NowCast and rolling mean are separately labelled derived concentrations. How the categories are used.

Nearby fires

150 km radius

Within 150 km, agencies report 3 Advice warnings and 1 other fire location. There are also 2 planned or registered burns.

View 4 nearby fire locations
AdviceMEBUL RD, BERYL102 km away · Not yet controlled · Bush FireNSW Rural Fire Service
Official warning details

ALERT LEVEL: Advice
LOCATION: MEBUL RD, BERYL 2852
COUNCIL AREA: Mid-Western
STATUS: Not yet controlled
TYPE: Bush Fire
FIRE: Yes
SIZE: 0 ha
RESPONSIBLE AGENCY: Rural Fire Service
UPDATED: 11 Oct 2026 19:28

Official source
AdviceBLACK NOB SINGLETON MILITARY AREA95 km away · Under control · Bush FireNSW Rural Fire Service
Official warning details

ALERT LEVEL: Advice
LOCATION: BLACK NOB SINGLETON MILITARY AREA 2331
COUNCIL AREA: Singleton
STATUS: Under control
TYPE: Bush Fire
FIRE: Yes
SIZE: 59 ha
RESPONSIBLE AGENCY: Rural Fire Service
UPDATED: 11 Oct 2026 16:18

Official source
AdviceMASONITE RD, TOMAGO144 km away · Under control · Bush FireNSW Rural Fire Service
Official warning details

ALERT LEVEL: Advice
LOCATION: MASONITE RD, TOMAGO 2322
COUNCIL AREA: Port Stephens
STATUS: Under control
TYPE: Bush Fire
FIRE: Yes
SIZE: 0 ha
RESPONSIBLE AGENCY: NSW National Parks and Wildlife Service
UPDATED: 11 Oct 2026 09:50

Official source
WILTON RD, AWABA143 km away · Not yet controlled · OtherNSW Rural Fire Service
Agency report details

ALERT LEVEL: Not Applicable
LOCATION: WILTON RD, AWABA 2283
COUNCIL AREA: Lake Macquarie
STATUS: Not yet controlled
TYPE: Other
FIRE: Yes
SIZE: 0 ha
RESPONSIBLE AGENCY: Rural Fire Service
UPDATED: 11 Oct 2026 19:46

Official source
View 2 planned or registered burns nearby
SALISBURY RD, SALISBURY103 km away · Under control · Burn offNSW Rural Fire Service
Agency report details

ALERT LEVEL: Not Applicable
LOCATION: SALISBURY RD, SALISBURY 2420
COUNCIL AREA: Dungog
STATUS: Under control
TYPE: Burn off
FIRE: Yes
SIZE: 0 ha
RESPONSIBLE AGENCY: Rural Fire Service
UPDATED: 11 Oct 2026 15:04

Official source
Forestry Plantation HR - OLNEY SF 077-078134 km away · Under control · Hazard ReductionNSW Rural Fire Service
Agency report details

ALERT LEVEL: Planned Burn
LOCATION: BEAVENS RIDGE FOREST RD, RAVENSDALE 2259
COUNCIL AREA: Central Coast
STATUS: Under control
TYPE: Hazard Reduction
FIRE: Yes
SIZE: 86 ha
RESPONSIBLE AGENCY: Forestry Corporation of NSW
UPDATED: 11 Oct 2026 18:28

Official source

Agency fire reports updated

Straight-line distance from the Merriwa monitor to the reported incident location, or to the mapped fire boundary where an agency has published one. A fire without a published boundary may extend closer than its reported location suggests.

Recent observations and next 48 hours

monitor + up to three models
200−24 hNow+24 h+48 hµg/m³
About this chart

Observed values come from this monitor. NASA GEOS-CF, CAMS and SILAM are independent total surface PM2.5 research forecasts sampled from their nearest grid cells; they are not blended with the observations.

Forecast

Next 6 hoursGood4.1–6.0 µg/m³ · 3 of 3 models
Next 12 hoursGood4.1–6.3 µg/m³ · 3 of 3 models
Next 24 hoursGood5.6–7.4 µg/m³ · 3 of 3 models
Next 48 hoursGood5.6–7.7 µg/m³ · 3 of 3 models
Model detail3 available · 48-hour peak table
Model48-hour peakCategoryPeak around
NASA GEOS-CF6.3 µg/m³Good12 Oct, 4:30 AM AEDT
CAMS5.6 µg/m³Good12 Oct, 4:00 AM AEDT
FMI SILAM7.7 µg/m³Good12 Oct, 10:00 PM AEDT
Recent hourly readings47 stored
Observed localPM2.5 µg/m³Air quality
11 Oct, 8:00 PM AEDT1.2Good
11 Oct, 7:00 PM AEDT2.6Good
11 Oct, 6:00 PM AEDT3.8Good
11 Oct, 5:00 PM AEDT1.4Good
11 Oct, 4:00 PM AEDT2.3Good
11 Oct, 3:00 PM AEDT6.0Good
11 Oct, 2:00 PM AEDT4.4Good
11 Oct, 1:00 PM AEDT3.8Good
11 Oct, 12:00 PM AEDT3.7Good
11 Oct, 11:00 AM AEDT2.3Good
11 Oct, 10:00 AM AEDT0.1Good
11 Oct, 9:00 AM AEDT2.1Good
11 Oct, 8:00 AM AEDT5.5Good
11 Oct, 7:00 AM AEDT2.2Good
11 Oct, 6:00 AM AEDT4.6Good
11 Oct, 5:00 AM AEDT2.2Good
11 Oct, 4:00 AM AEDT3.4Good
11 Oct, 3:00 AM AEDT1.4Good
11 Oct, 2:00 AM AEDT5.7Good
11 Oct, 1:00 AM AEDT5.9Good
11 Oct, 12:00 AM AEDT3.2Good
10 Oct, 11:00 PM AEDT2.8Good
10 Oct, 10:00 PM AEDT2.9Good
10 Oct, 9:00 PM AEDT1.2Good
10 Oct, 8:00 PM AEDT1.9Good
10 Oct, 7:00 PM AEDT3.9Good
10 Oct, 6:00 PM AEDT8.6Good
10 Oct, 5:00 PM AEDT9.8Good
10 Oct, 4:00 PM AEDT6.0Good
10 Oct, 3:00 PM AEDT5.8Good
10 Oct, 2:00 PM AEDT6.4Good
10 Oct, 1:00 PM AEDT5.9Good
10 Oct, 12:00 PM AEDT8.3Good
10 Oct, 11:00 AM AEDT6.3Good
10 Oct, 10:00 AM AEDT6.9Good
10 Oct, 9:00 AM AEDT7.9Good
10 Oct, 8:00 AM AEDT7.6Good
10 Oct, 7:00 AM AEDT6.0Good
10 Oct, 6:00 AM AEDT5.5Good
10 Oct, 5:00 AM AEDT5.7Good
10 Oct, 4:00 AM AEDT7.5Good
10 Oct, 3:00 AM AEDT6.5Good
10 Oct, 2:00 AM AEDT8.3Good
10 Oct, 1:00 AM AEDT7.3Good
10 Oct, 12:00 AM AEDT6.5Good
09 Oct, 11:00 PM AEDT4.7Good
09 Oct, 10:00 PM AEDT4.1Good

Nearby government monitors

same jurisdiction
Wybong20.5 µg/m³ PM1022 km away · NSW DCCEEWAberdeen14.4 µg/m³ PM1040 km away · NSW DCCEEWMuswellbrook Nw50.1 µg/m³ PM1042 km away · NSW DCCEEWMuswellbrook11.1 µg/m³ PM2.543 km away · NSW DCCEEWJerrys Plains94.3 µg/m³ PM1054 km away · NSW DCCEEWCamberwell10.9 µg/m³ PM2.571 km away · NSW DCCEEW
Times are local (AEDT) and mark the end of each measurement hour.Methodology & source policyHosted in Australia