Eastlink Ambient Air Quality Monitoring Report No: DAT4594 This document is issued in accordance with NATA’s accreditation requirements. Accredited for compliance with ISO/IEC 17025 NATA Accreditation No: 14184 Transfield Services Limited Eastlink Ambient Air Quality Monitoring System Report 1 st June 2010 – 30 th June 2010 Report issue date: 15 th July 2010 Maintenance contract: MC621
29
Embed
Eastlink Ambient Air Quality Monitoring System Report · reporting for the Eastlink ambient air quality monitoring ... A siting audit conducted on 17 ... Each logger is equipped with
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Eastlink Ambient Air Quality Monitoring Report No: DAT4594
This document is issued in accordance with NATA’s accreditation requirements.
4.0 Air Quality Goals...................................................................................................................................10
5.0 Calibrations and Maintenance.............................................................................................................10
5.1 Units and Uncertainties ............................................................................................................ 10
Ecotech P/L was commissioned by Transfield Services to provide monitoring and data reporting for the Eastlink ambient air quality monitoring network, located as detailed in Table 1. Ecotech commenced data collection from the Eastlink network on the 16th June 2010.
This report presents the data for June 2010. The data presented in this report:
• Describes air quality measurements • Compares monitoring results • Has been quality assured • Complies with NATA accreditation requirements, where applicable
3.0 Monitoring and Data Collection
The Eastlink monitoring network consists of three ambient air quality monitoring stations. Station locations and parameters monitored are described below.
A siting audit conducted on 17 June 2010 showed that the siting of these stations complies with AS/NZS 3580.1.1:2007 Methods for sampling and analysis of ambient air.
These sites are classified as neighbourhood stations according to AS/NZS 3580.1.1:2007 Methods for sampling and analysis of ambient air.
measurement of horizontal wind for air quality applications
Ambient Temperature US EPA 454/R‐99‐005 Meterological Monitoring Guidance for Regulatory Modeling Applications
Relative Humidity US EPA 454/R‐99‐005 Meterological Monitoring Guidance for Regulatory Modeling Applications
Solar Radiation US EPA 454/R‐99‐005 Meterological Monitoring Guidance for Regulatory Modeling Applications
3.2.1 Data Acquisition Data acquisition is done using a PC based WinAQMS logger (using WinCollect® Version 4.0 & WinAQMS® Version 2.0) situated at each of the three monitoring sites; Chaim Crt, Craig Rd and Heads Rd. Each logger is equipped with a 3G modem for remote data collection. The recorded data is remotely collected from the AQMS loggers on a daily basis and stored at Ecotech’s Environmental Reporting Services (ERS) department in Melbourne. Data samples are logged in 5 minute intervals.
3.3.1 Validation The Ecotech ERS department perform daily data checks to ensure maximum data capture rates are maintained. Any equipment failures are communicated to the responsible field engineers for urgent rectification. Ecotech ERS maintains two distinct databases containing non‐validated and validated data respectively. The validated database is created by duplicating the non‐validated database and then flagging data affected by instrument faults, calibrations and other maintenance activities. The data validation software requires the analyst to supply a valid reason (e.g. backed by maintenance notes, calibration sheets etc) in the database for flagging any data as invalid. Validation is performed by the operator, and the validation is reviewed. All data is checked and graphs and reports are generated based on the verified 5 minute data.
3.3.2 Reporting The reported data is in 3 Microsoft Excel format files named “Chaim Crt Data Report_Jun10.xls”, “Craig Rd Data Report_Jun10” and “Heads Rd Data Report_Jun10”. Each Excel file consists of 3 Excel spreadsheets: 1. 1 Hour Data 2. 24 Hour Data 3. Valid Data Exception Table The data contained in these reports is based on Australian Eastern Standard Time. Data is for all parameters measured continuously. All averages are calculated from the 5 minute data. Averaging times are reported for the end of the period, i.e. the hourly average 02:00am is for the data collected from 1:00am to 2:00am.
The air quality goal requirements for particulates at the Eastlink monitoring network sites are shown below.
Table 4: SEPP Schedule B Intervention Levels
Parameter Time Period Intervention
Level Units
NO2 1 hour 140 ppb
CO 1 hour 29 ppm
PM10 24 hour 60 µg/m3
PM2.5 24 hour 36 µg/m3
5.0 Calibrations and Maintenance
5.1 Units and Uncertainties The uncertainties for each parameter have been determined by the manufacturers tolerance limits of the equipment’s parameters, and by the applicable Australian Standard.
5.2 Maintenance The last calibrations for the following parameters have been performed on the indicated date. Data supplied after this time is subject to verification to be performed at the next calibration cycle. Tables 6, 7 and 8 indicate when the particulate, gas and meteorological equipment were last calibrated.
Table 6: Chaim Court Maintenance Table June 2010
Parameter
Scheduled
Maintenance
Performed
Date Scheduled
Maintenance
performed
Last Calibration Date
NO, NO2, NOx Yes N/A N/A
CO Yes N/A N/A
PM10 Yes N/A N/A
PM2.5 Yes N/A N/A
Wind Speed* Yes N/A N/A
Wind Direction* Yes N/A N/A
Ambient Temperature Yes N/A N/A
Relative Humidity Yes N/A N/A
Solar Radiation Yes N/A N/A
*Instrument not covered by NATA scope of accreditation. Instrument was not maintained according to AS 2923‐
6.1 Percentage Availability Percentage availability is based on 1 hour averages, calculated from 5 minute data, and refers to the amount of available data collected for June 2010.
The percentage of available data is calculated using the following equation:
Availability = (Reported air quality data / Total data) x 100%
• Reported air quality data = Number of instrument readings which have been verified through a NATA or quality assured process as appropriate and excludes all data errors, zero data collection due to calibration, failures and planned and unplanned maintenance.
• Total data = Total number of instrument readings since the start of the term assuming no maintenance, errors, loss of data or calibration.
6.2 Graphical Reports Validated 5 minute data for NO, NO2, NOx, CO, PM10, PM2.5, wind speed and wind direction were used to construct the following monthly graphical representations.
Transfield ServicesCO - Ambient 1 hour averages compiled from 5 min. data.
• Percentage availability for all parameters at Chaim Crt was above 95% from June 16th 2010, when monitoring by Ecotech P/L commenced, until the end of the month.
• Percentage availability for oxides of nitrogen, meteorological and particulate
parameters at the Craig Rd station was above 95% for the reporting period, however CO fell below this threshold, 64%. The CO availability was low due to a flow error in the CO analyzer, and the overnight span checks being out of tolerance for three days. The CO analyzer was swapped out for repair on June 25th.
• The percentage availability for all parameters at the Heads Rd site were above 95%
for the reporting month.
• There were no recorded readings over the SEPP intervention levels for the reporting period.
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐END OF REPORT‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
Logger update and site integration refers to the initial handover and setup time of the instrument when it is first installed and the channels are stabilizing.
Data transmission error refers to a period of time when the instrument could not transmit data. This may be due to interference, or a problem with the phone line or modem.
Instrument fault refers to a period of time when the instrument was not in the normal operating mode and did not measure a representative value of the existing conditions.
Instrument out of service refers to a lack of data due to an instrument being shut down for repair, maintenance or factory calibration.
Maintenance refers to a period of time when the logger / instrument was switched off due to maintenance.
Power Interruption refers to no power to the station, therefore no data was collected at this time