South African Weather Service - Highveld Priority Area Air Quality Monitoring Network Monthly Report – December 2018
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Highveld Priority Area Air Quality Monitoring Network Monthly Report – December 2018 South African Weather Service - Highveld Priority Area Air Quality Monitoring Network Monthly Report – December 2018 Document Reference: AQI-HPA-MER-2018-December-001 Document Type: Report Version: 1 This document is controlled in terms of the South African Weather Services’ Quality Management System and may not be edited, distributed or deemed obsolete without permission of the Management Quality CONTROLLED COPY WHEN PRINTED OUTSIDE THE ELECTRONIC QUALITY MANAGEMENT SYSTEM: Page 1 of 56 Representative.Public Document Document Reference: AQI-REP-HPA-MER-2018-DECEMBER 2018.001 Highveld Priority Area Air Quality Monitoring Network Monthly Report – December 2018 Document Control Version and Amendment Schedule Version Version Date Author Description of Amendments 1 15/01/2017 Xolile Ncipha First Draft Compliance Schedule Compliance Type Compliance Date of Compliance Responsibility Signature Checked Approved by: Approval Documentation Mr Mandlesilo TQM Manager Compliance Mavimbela Approval and Control Schedule Date Copy Approved By Designation Responsibility Signature Approved Status Senior Manager Mr Kamaseelan Air Quality Chetty Information SAWS CONTROLLED COPY WHEN PRINTED OUTSIDE THE ELECTRONIC QUALITY MANAGEMENT SYSTEM: Page 2 of 56 Public Document Document Reference: AQI-REP-HPA-MER-2018-DECEMBER 2018.001 Highveld Priority Area Air Quality Monitoring Network Monthly Report – December 2018 EXECUTIVE SUMMARY Five ambient air monitoring stations are operated and maintained in the Highveld Priority Area (HPA) by the South African Weather Service. At each of the stations PM10, PM2.5, SO2, NO, NO2, NOx, O3, CO, benzene, toluene, ethylbenzene, and xylene are measured. In addition, meteorological data for wind speed, wind direction, ambient temperature, relative humidity, rainfall, solar radiation and barometric pressure are also measured. This report presents the relevant data for the month of December2018. The HPA network achieved 90.69% valid data collection for this month. Only Hendrina and Witbank stations recorded valid data recovery below 90%, Hendrina mainly lost data due power failure and Witbank as a result of faulty instruments. Only Ermelo recorded exceedances of PM10 daily NAAQS, the station exceeded the PM10 daily NAAQS 4 times. No station observed the exceedance of PM2.5 daily NAAQS. Only Hendrina observed the exceedance of SO2 10 minute NAAQS which occurred once. No station recorded the exceedance of SO2 hourly and daily NAAQS. The whole network did not observe the exceedance of hourly NO2 and CO NAAQS, and CO 8-hourly running average NAAQS. Only Ermelo observed O3 8-hourly running average NAAQS exceedances, the station recorded 10 exceedances. CONTROLLED COPY WHEN PRINTED OUTSIDE THE ELECTRONIC QUALITY MANAGEMENT SYSTEM: Page 3 of 56 Public Document Document Reference: AQI-REP-HPA-MER-2018-DECEMBER 2018.001 Highveld Priority Area Air Quality Monitoring Network Monthly Report – December 2018 REPORT DETAILS REFERENCE AQI-REP-HPA-MER-2018-DECEMBER-001 REPORT Highveld Priority Area Air Quality Monitoring Network Monthly Report – December TITLE 2018 DATE 14 January 2018 SUBMITTED CLIENT Thabo Setshedi Department of Environmental Affairs Environment House, 473 Steve Biko, Arcadia, Pretoria, 0083 South Africa Email : [email protected] Tel : +27 12 399 9000 PREPARED Xolile Ncipha BY Air Quality Information South African Weather Services 442 Rigel Avenue Erasmusrand Pretoria EQUIRIES Tel: 012 3676000 e-mail: [email protected] SIGNED APPROVER(S) Technical Manager : Mr Desmond Mabaso Quality Manager D:AQI : Mr Lotta Mayana SIGNED STATUS Final NOTICE This document is issued by SAWS under its General Conditions of Service accessible at http://www.weathersa.co.za/terms_and_conditions.htm. Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. The South African Weather Service (SAWS) through the Department Air Quality Information operates and maintains ambient air quality monitoring networks. While SAWS takes every precaution to ensure quality assurance and the application of best monitoring practice, SAWS cannot vouch for the quality and representativeness of the samples. The data herein reflects the data transferred using the data acquisition system only. While data in this report were collected, processed and compiled with care, the accuracy and reliability of this information is subject to variations due to limitations of equipment and programs used. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful. This report shall not be reproduced except in full and with the express consent of the SAWS. CONTROLLED COPY WHEN PRINTED OUTSIDE THE ELECTRONIC QUALITY MANAGEMENT SYSTEM: Page 4 of 56 Public Document Document Reference: AQI-REP-HPA-MER-2018-DECEMBER 2018.001 Highveld Priority Area Air Quality Monitoring Network Monthly Report – December 2018 TABLE OF CONTENTS DOCUMENT CONTROL 1 INTRODUCTION .......................................................................................................................................... 10 2 METEOROLOGICAL OVERVIEW .................................................................................................................. 14 2.1 WINDS AT THE HPAMN FOR DECEMBER 2018 ................................................................................................... 14 2.2 TEMPERATURE AND RAINFALL ........................................................................................................................... 16 3 AMBIENT AIR QUALITY MONITORING ....................................................................................................... 17 3.1 MEASUREMENT METHODS ................................................................................................................................ 17 3.1.1 Oxides of nitrogen ......................................................................................................................... 17 3.1.2 Sulphur Dioxide ............................................................................................................................. 17 3.1.3 Carbon monoxide .......................................................................................................................... 17 3.1.4 Ozone ............................................................................................................................................ 17 3.1.5 Particulate Matter ......................................................................................................................... 18 3.1.6 Black Carbon.................................................................................................................................. 18 3.2 CALIBRATION CONDITIONS................................................................................................................................ 18 3.3 DATA CAPTURE .............................................................................................................................................. 18 3.3.1 Data Availability at the Highveld Priority Area Monitoring Network ............................................ 19 3.4 DATA VALIDATION AND QUALITY ASSURANCE ...................................................................................................... 22 3.5 NUMBER OF EXCEEDANCES OF NATIONAL AMBIENT AIR QUALITY STANDARDS............................................................ 22 3.5.1 Exceedances recorded at HPAMN Stations ................................................................................... 23 3.6 PARTICULATE MATTER (PM10 AND PM2.5) CONCENTRATION ............................................................................... 25 3.7 SULPHUR DIOXIDE (SO2) CONCENTRATION .......................................................................................................... 26 3.8 NITROGEN DIOXIDE (NO2) CONCENTRATION ....................................................................................................... 28 3.9 OZONE (O3) CONCENTRATION .......................................................................................................................... 28 3.10 CARBON MONOXIDE (CO) CONCENTRATION ....................................................................................................... 29 3.11 BLACK CARBON CONCENTRATION ...................................................................................................................... 30 4 MAINTENANCE AND CALIBRATION ............................................................................................................ 30 4.1 WITBANK ...................................................................................................................................................... 32 4.2 MIDDELBURG ................................................................................................................................................. 33 4.3 HENDRINA ..................................................................................................................................................... 34 CONTROLLED COPY WHEN PRINTED OUTSIDE THE ELECTRONIC QUALITY MANAGEMENT SYSTEM: Page 5 of 56 Public Document Document Reference: AQI-REP-HPA-MER-2018-DECEMBER 2018.001 Highveld Priority Area Air Quality Monitoring Network Monthly Report – December 2018 4.4 ERMELO .......................................................................................................................................................