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研究報告

Annex G Compliance Status of the Air Quality Objectives

Annex G1 Compliance Status of the Air Quality Objectives

Table G1 Table of Compliance Status of the Air Quality Objectives
Table G1 Table of Compliance Status of the Air Quality Objectives
Pollutant AQO 89 90 91 92 93 94 95 96 97
Total suspended particulates 24 hour x x O x O x x x O
Annual x x x x x x x x x
Respirable suspended particulates 24 hour x O O O O O x O O
Annual x x x x x x x x x
Sulphur dioxide 1 hour x O O O O O O O O
24 hour x O O O O O O O O
Annual x O O O O O O O O
Nitrogen dioxide 1 hour x x O O O O O O x
24 hour x x x x x x x x x
Annual O O O O O x O O x
Carbon monoxide 1 hour O n/a O O O O O O O
8 hour O n/a O O O O O O O
Ozone 1 hour O O O O O O O x O
Lead 3 month O O O O O O O O O

Note:
O = air quality objective was achieved; x = air quality objective was not achieved
n/a = information not available
Source: Data provided by EPD

Annex G2 Long Term Trends in Criteria Air Pollutants in Hong Kong

Table G2 Long Term Trends in Annual Average Criteria Air Pollutants in Hong Kong

Sulphur Dioxide/ Monitoring Station

 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988
Kwun Tong 12 16 19 10 24 31 21 22 39 36 56
Sham Shui Po 18 20 18 24 26 27 12 10 13 12 21
Central/Western 14 18 15 21 19 24 23 18 19 16 19
Tsuen Wan 14 20 22 23 30 50 36 36 41 28 35
Kwai Chung 15 18 21 20 24 33 22 23 67 111 126
Tai Po 9 13 - - - 25 12 7 5 - -
Shatin 8 11 13 13 10 10 8 14 - - -
Mong Kok 18 18 30 33 51 43 49 49 - - -
Yuen Long 17 21 18 13 - - - - - - -
(Causeway Bay)+ - - - - - - - - 27 16 23
(Tsim Sha Tsui) - - - - - 22 25 13 26 42 53
(Junk Bay) - - - - - 9 11 6 5 7 9
(Hong Kong South) - - - - - 9 12 7 8 11 -
HK Average 14 18 20 20 26 27 21 18 25 33 34
Nitrogen Dioxide/ Monitoring Station 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988
Kwun Tong 68 74 65 57 59 66 74 57 60 60 93
Sham Shui Po 67 71 62 67 65 62 57 48 65 47 -
Central/Western 52 58 47 54 52 50 50 46 50 60 32
Tsuen Wan 62 68 59 61 59 56 63 57 52 67 64
Kwai Chung 46 49 44 46 46 48 44 44 39 36 27
Tai Po 51 50 44 45 46 42 40 36 33 - -
Shatin 45 49 45 44 40 - - - - - -
Mong Kok 83 85 75 84 88 75 75 70 - - -
Yuen Long 54 61 52 42 - - - - - - -
(Causeway Bay)+ - - - - - - - - 61 40 -
(Junk Bay) - - - - - 21 24 20 15 12 21
(Hong Kong South) - - - - - 26 29 25 21 - -
HK Average 59 63 57 57 58 53 51 44 42 46 49
Ozone/ Monitoring Station 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988
Central/Western 30 27 29 24 22 25 24 21 19 15 19
Tsuen Wan 20 22 - - - 11 17 16 17 17 23
Kwai Chung 31 33 34 29 27 23 18 18 16 14 23
Tai Po 31 28 - - - 16 - - - - -
Yuen Long 23 24 20 17 - - - - - - -
(Junk Bay) - - - - - 33 22 36 49 52 40
HK Average 27 26 29 26 25 23 19 22 25 21 26
Carbon Monoxide/ Monitoring Station 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988
Mong Kok 1146 1095 1100 122 154 148 147 136 - - -
Kwai Chung - 651 490 - 50 - - - - - -
HK Average 1146 896 933 122 124 148 147 136 - - -
Total Suspended Particulates/ Monitoring Station 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988
Kwun Tong 80 93 99 107 107 105 104 89 92 121 143
Sham Shui Po 86 89 101 99 102 118 124 99 102 109 119
Central/Western 77 84 87 93 87 81 86 75 75 84 102
Tsuen Wan 74 82 85 97 101 106 107 89 87 98 126
Kwai Chung 63 71 75 81 88 88 91 83 86 100 146
Tai Po 68 80 77 84 87 92 87 74 72 - -
Shatin 67 66 69 73 78 74 81 61 - - -
Mong Kok 103 134 142 135 158 148 159 109 - - -
Yuen Long 97 103 114 131 - - - - - - -
(Causeway Bay)+ - - - - - - - - 86 87 110
(Tsim Sha Tsui) - - - - - 82 86 71 73 77 95
(Junk Bay) - - - - - 77 77 73 69 77 104
(Hong Kong South) - - - - - 60 70 60 55 61 -
HK Average 79 89 93 96 101 97 99 85 80 94 113
Respirable Suspended Particulates/ Monitoring Station 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988
Kwun Tong 53 59 59 62 57 64 72 66 62 58 74
Sham Shui Po 55 58 59 60 61 68 71 63 61 61 65
Central/Western 49 56 52 59 56 56 60 56 54 53 71
Tsuen Wan 54 56 53 62 62 59 64 57 48 55 77
Kwai Chung 45 51 48 52 51 53 55 54 52 58 87
Tai Po 50 55 52 56 50 51 53 49 46 - -
Shatin 46 47 46 50 53 43 51 42 - - -
Mong Kok 63 75 77 75 69 66 71 59 - - -
Yuen Long 61 64 64 75 - - - - - - -
(Causeway Bay)+ - - - - - - - - 55 54 66
(Tsim Sha Tsui) - - - - - 49 55 49 52 52 59
(Junk Bay) - - - - - 39 44 44 44 45 63
(Hong Kong South) - - - - - 35 46 43 37 38 -
HK Average 53 58 56 60 58 54 58 55 51 54 67

Notes:
* Monitoring stations shown in parentheses are now closed.
+ Causeway Bay now has a roadside station, but the data from this station have not been included as the roadside station does not represent ambient air quality.
Source: EPD Air Quality Reports, 1989-1998 (& Consultants' calculation of HK Averages)

 

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