PDF《Guangdong-Hong Kong-Macao》

Guangdong-Hong Kong-Macao Pearl River Delta Regional Air Quality Monitoring Network July to September

2018 Statistical Summary of the Third Quarter Monitoring Results Report Number : PRDAIR-2018-3 Report Prepared by : Guangdong Provincial Environmental Monitoring Centre Environmental Protection Department, Hong Kong SARG Environmental Protection Bureau, Macao SARG Meteorological and Geophysical Bureau, Macao SARG Approved by : Quality Management Committee of Guangdong-Hong Kong-Macao Pearl River Delta Regional Air Quality Monitoring Network Security Classification : Unrestricted C Co on nt te en nt ts s Page 1.

Foreword

3 2. Introduction to Guangdong-Hong Kong-Macao Pearl River Delta Regional Air Quality Monitoring Network

3 3. Operation of the Network

4 4. Statistical Results of Pollutant Concentrations

5 Annex A: Site Information of Monitoring Stations

21 Annex B: Measurement Methods of Air Pollutant Concentration

22 L Li is st t o of f T Ta ab bl le es s Page Table 4.1a:The monthly maxima and minima of hourly averages of SO2

5 Table 4.1b:The monthly maxima and minima of daily averages of SO2

6 Table 4.1c :The monthly averages of SO2

7 Table 4.2a:The monthly maxima and minima of hourly averages of NO2

8 Table 4.2b:The monthly maxima and minima of daily averages of NO2

9 Table 4.2c:The monthly averages of NO2

10 Table 4.3a:The monthly maxima and minima of hourly averages of O3

11 Table 4.3b:Daily maximum 8-hour averages of O3 (the monthly maxima, minima and the 90th percentile)

12 Table 4.3c:The monthly averages of O3

13 Table 4.4a:The monthly maxima and minima of hourly averages of CO

14 Table 4.4b:Daily averages of CO (the monthly maxima, minima and the 95th percentile)

15 Table 4.4c:The monthly averages of CO

16 Table 4.5a:The monthly maxima and minima of daily averages of PM10

17 Table 4.5b:The monthly averages of PM10

18 Table 4.6a:The monthly maxima and minima of daily averages of PM2.5

19 Table 4.6b:The monthly averages of PM2.5

20 L Li is st t o of f F Fi ig gu ur re es s Page Figure 2.1:Spatial Distribution of Monitoring Stations in the Network

4 3 1. Foreword Since the Pearl River Delta (PRD) Regional Air Quality Monitoring Network came into operation on

30 November 2005, the PRD Regional Air Quality Index (RAQI) was reported to the public on a daily basis. Starting from 2006, half-yearly and annual air quality monitoring reports were also published every year. The network was subsequently enhanced and expanded in September

2014 and renamed to Guangdong-Hong Kong-Macao Pearl River Delta Regional Air Quality Monitoring Network (the Network ). To cope with the enhancement of the network, the update of the national ambient air quality standards as well as the need for improving the reporting frequency of monitoring results, starting from 2014, the real-time hourly monitoring data was reported on a new internet platform to replace the daily RAQI, the half-yearly report was also replaced by a quarterly report while the annual air quality monitoring report was maintained. The quarterly report is a brief statistical summary of the regional air quality monitoring results in a quarter. The annual report, in addition to the reporting of the monitoring data, provides a more detailed analysis and comparison of the air quality in the year. From the fourth quarter of 2014, the statistical results of carbon monoxide (CO) and fine suspended particulates (PM2.5 or FSP) were added to the report in addition to those of respirable suspended particulates (PM10 or RSP), sulphur dioxide (SO2), nitrogen dioxide (NO2), and ozone (O3). This report is the statistical summary of the monitoring results of the PRD Regional Air Quality Monitoring Network in the third quarter of 2018. It is the nineteenth report published in the form of a quarterly report and the sixteenth report with the statistical summaries of the six pollutants (i.e. PM10, PM2.5, SO2, NO2, O3 and CO). 2. Introduction to Guangdong-Hong Kong-Macao Pearl River Delta Regional Air Quality Monitoring Network The PRD Regional Air Quality Monitoring Network was jointly established by the Guangdong Provincial Environmental Monitoring Centre (GDEMC) and the Environmental Protection Department of the Hong Kong Special Administrative Region (HKEPD) from