Supplementary Material

Transcription

1 Supplementary Material 15-Year PM 2.5 Trends in the Pearl River Delta Region and Hong Kong from Satellite Observation C.Q. Lin 1,2, Y. Li 3, A.K.H. Lau 1,2,4,*, C.C. Li 5, J.C.H. Fung 2,4,6 * Corresponding author. Tel: (852) ; Fax: (852) address: alau@ust.hk This file includes: Pages: 1-9 Figures: S1-S6 Tables: S1-S2 1

2 List of Table Titles and Figure Captions Table S1. Mean PM 2.5 trends for the entire PRD region and different cities during the three FYP periods. Cities are ordered by PM 2.5 concentration trends during the 12 th FYP period. Table S2. Mean PM 2.5 concentration trends for the districts in Hong Kong during the three FYP periods. Districts are ordered by PM 2.5 concentration trends during the 12 th FYP period. Figure S1. The left panel shows the topography and the cities in the PRD region: the capital Guangzhou (GZ), the special economic zones of Shenzhen (SZ) and Zhuhai (ZH), Dongguan (DG), Fushan (FS), Zhongshan (ZS), Zhaoqing (ZQ), Jiangmen (JM), and Huizhou (HZ), and the two special administrative regions of Hong Kong (HK) and Macau (MC). The right panel shows the topography and the 18 districts in Hong Kong: North (NO), Yuen Long (YL), Tai Po (TP), Tuen Mun (TM), Tsuen Wan (TW), Sha Tin (ST), Sai Kung (SK), Kwai Tsing (KI), Sham Shui Po (SS), Yau Tsim Mong (YT), Kowloon City (KC), Wong Tai Sin (WT), Kwun Tong (KU), Central and Western (CW), Wan Chai (WC), Eastern (EA), Southern (SO), and Islands (IS). Figure S2. Inter-annual variations of the satellite-derived and ground-observed PM 2.5 concentrations in the PRD region from 2001 to Figure S3. Inter-annual variations of the satellite-derived and ground-observed PM 2.5 concentration in Hong Kong from 2001 to Figure S4. Evaluation of the annual mean of the satellite-derived PM 2.5 concentration against ground observations in the PRD region from 2001 to Figure S5. Evaluation of the monthly mean of the satellite-derived PM 2.5 concentration against ground observations in the PRD region from 2001 to Figure S6. Spatial distributions of the 15-year means of the satellite-derived PM 2.5 concentration in the PRD region at resolutions of (a) 1 km and (b) 10 km. 2

3 Figure S1. The left panel shows the topography and the cities in the PRD region: the capital Guangzhou (GZ), the special economic zones of Shenzhen (SZ) and Zhuhai (ZH), Dongguan (DG), Fushan (FS), Zhongshan (ZS), Zhaoqing (ZQ), Jiangmen (JM), and Huizhou (HZ), and the two special administrative regions of Hong Kong (HK) and Macau (MC). The right panel shows the topography and the 18 districts in Hong Kong: North (NO), Yuen Long (YL), Tai Po (TP), Tuen Mun (TM), Tsuen Wan (TW), Sha Tin (ST), Sai Kung (SK), Kwai Tsing (KI), Sham Shui Po (SS), Yau Tsim Mong (YT), Kowloon City (KC), Wong Tai Sin (WT), Kwun Tong (KU), Central and Western (CW), Wan Chai (WC), Eastern (EA), Southern (SO), and Islands (IS). 3

4 Figure S2. Inter-annual variations of the satellite-derived and ground-observed PM2.5 concentrations in the PRD region from 2001 to

5 Figure S3. Inter-annual variations of the satellite-derived and ground-observed PM 2.5 concentration in Hong Kong from 2001 to

6 Figure S4. Evaluation of the annual mean of the satellite-derived PM 2.5 concentration against ground observations in the PRD region from 2001 to Figure S5. Evaluation of the monthly mean of the satellite-derived PM 2.5 concentration against ground observations in the PRD region from 2001 to

7 (a) (b) Figure S6. Spatial distributions of the 15-year means of the satellite-derived PM 2.5 concentration in the PRD region at resolutions of (a) 1 km and (b) 10 km. 7

8 Table S1. Mean PM 2.5 trends for the entire PRD region and different cities during the three FYP periods. Cities are ordered by PM 2.5 concentration trends during the 12 th FYP period. Region Trend in the 10 th FYP Trend in the 11 th FYP Trend in the 12 th FYP PRD HZ HK SZ DG GZ JM MC ZQ FS ZH ZS

9 Table S2. Mean PM 2.5 concentration trends for the districts in Hong Kong during the three FYP periods. Districts are ordered by PM 2.5 concentration trends during the 12 th FYP period. District Trend in the 10 th FYP Trend in the 11 th FYP Trend in the 12 th FYP SO SK TP EA NO WC KU KC CW YT WT ST IS SS TW KI YL TM