Auckland Point (Gladstone) 2012 hourly air...

Period of operation: 1 January to 31 December 2012

• DOAS instrument offline from 5 March to 31 December 2012 due to removal of DOAS analyser for repair and calibration by overseas manufacturer and a fault with the light transmitter unit

Site location: Latitude: -23.8351; Longitude: 151.2539
AS/NZS 3580.1.1:2007 Site classification: Neighbourhood
AS/NZS 3580.1.1:2007 compliance (pollutants): Complies with the exception of the following:

• DOAS light path between 4 metres and 25 metres above ground level

AS/NZS 3580.14—2011 compliance (meteorology): Complies with the exception of the following:

• Located on southern side of slope below a ridge
• Trees within 20 metres of the monitoring site

Wind: Ultrasonic sensor

• Height above ground level: 10 metres
• The wind direction sensor is aligned to magnetic north. The reported wind direction is referenced to true north by application of a magnetic declination correction of +10 degrees to the sensor output value.

Temperature: Capacitive ceramic sensor
Ozone, nitrogen dioxide, sulfur dioxide, benzene, toluene, xylenes (total), formaldehyde: Differential Optical Absorption Spectroscopy (DOAS) analyser

• Value is average concentration over 680 metre light path running north-south from 23.8351, 151.2539 to -23.8409,151.2550
• Instrument output offset and/or scaled based on instrument calibration data

PM10: Tapered Element Oscillating Balance (TEOM) operated in accordance with AS 3580.9.8—2001

• Measurement values do not compensate for loss of semi-volatile components from the collected particulate matter
• Instrument output values are adjusted in accordance with US EPA equivalence designation method EQPM-1090-079 requirements (scaled by 1.03, offset by +3.0)
• After adjustment, negative hourly PM10 concentrations less than -0.5 µg/m3 are removed and concentrations between -0.5 µg/m3 and 0.0 µg/m3 are set to 0.0 µg/m3