| Rank |
Countries
|
Amount
|
Date
|
|
# 1
|
Sudan: |
231.98 mcg/m³
|
1997  |
|
|
Environment in Sudan
|
|
# 2
|
Mali: |
211.92 mcg/m³
|
1997  |
|
|
Environment in Mali
|
|
# 3
|
Pakistan: |
199.6 mcg/m³
|
1997  |
|
|
Environment in Pakistan
|
|
# 4
|
Uruguay: |
198.42 mcg/m³
|
1997  |
|
|
Environment in Uruguay
|
|
# 5
|
Liechtenstein: |
183.24 mcg/m³
|
1997  |
|
|
Environment in Liechtenstein
|
|
# 6
|
Bangladesh: |
178.59 mcg/m³
|
1997  |
|
|
Environment in Bangladesh
|
|
# 7
|
Niger: |
177.28 mcg/m³
|
1997  |
|
|
Environment in Niger
|
|
# 8
|
Iraq: |
172.81 mcg/m³
|
1997  |
|
|
Environment in Iraq
|
|
# 9
|
United Arab Emirates: |
171.27 mcg/m³
|
1997  |
|
|
Environment in United Arab Emirates
|
|
# 10
|
Chad: |
167.02 mcg/m³
|
1997  |
|
|
Environment in Chad
|
|
# 11
|
Saudi Arabia: |
166.7 mcg/m³
|
1997  |
|
|
Environment in Saudi Arabia
|
|
# 12
|
Egypt: |
159.96 mcg/m³
|
1997  |
|
|
Environment in Egypt
|
|
# 13
|
Kuwait: |
132.29 mcg/m³
|
1997  |
|
|
Environment in Kuwait
|
|
# 14
|
Syria: |
132.24 mcg/m³
|
1997  |
|
|
Environment in Syria
|
|
# 15
|
Andorra: |
128.68 mcg/m³
|
1997  |
|
|
Environment in Andorra
|
|
# 16
|
Angola: |
125.86 mcg/m³
|
1997  |
|
|
Environment in Angola
|
|
# 17
|
Indonesia: |
117.16 mcg/m³
|
1997  |
|
|
Environment in Indonesia
|
|
# 18
|
Oman: |
115 mcg/m³
|
1997  |
|
|
Environment in Oman
|
|
# 19
|
Burkina Faso: |
114.04 mcg/m³
|
1997  |
|
|
Environment in Burkina Faso
|
|
# 20
|
Mauritania: |
111.19 mcg/m³
|
1997  |
|
|
Environment in Mauritania
|
|
# 21
|
Trinidad and Tobago: |
110 mcg/m³
|
1997  |
|
|
Environment in Trinidad and Tobago
|
|
# 22
|
Nigeria: |
109.35 mcg/m³
|
1997  |
|
|
Environment in Nigeria
|
|
# 23
|
Libya: |
104.66 mcg/m³
|
1997  |
|
|
Environment in Libya
|
|
# 24
|
Armenia: |
102.51 mcg/m³
|
1997  |
|
|
Environment in Armenia
|
|
# 25
|
Gambia, The: |
99.5 mcg/m³
|
1997  |
|
|
Environment in Gambia, The
|
|
# 26
|
Cameroon: |
99.48 mcg/m³
|
1997  |
|
|
Environment in Cameroon
|
|
# 27
|
Bolivia: |
98.86 mcg/m³
|
1997  |
|
|
Environment in Bolivia
|
|
# 28
|
Paraguay: |
98.23 mcg/m³
|
1997  |
|
|
Environment in Paraguay
|
|
# 29
|
India: |
96.41 mcg/m³
|
1997  |
|
|
Environment in India
|
|
# 30
|
Yemen: |
96.35 mcg/m³
|
1997  |
|
|
Environment in Yemen
|
|
# 31
|
Azerbaijan: |
95.27 mcg/m³
|
1997  |
|
|
Environment in Azerbaijan
|
|
# 32
|
Botswana: |
95.1 mcg/m³
|
1997  |
|
|
Environment in Botswana
|
|
# 33
|
Korea, North: |
94.92 mcg/m³
|
1997  |
|
|
Environment in Korea, North
|
|
# 34
|
Ethiopia: |
94.74 mcg/m³
|
1997  |
|
|
Environment in Ethiopia
|
|
# 35
|
Sri Lanka: |
94.58 mcg/m³
|
1997  |
|
|
Environment in Sri Lanka
|
|
# 36
|
Eritrea: |
94.18 mcg/m³
|
1997  |
|
|
Environment in Eritrea
|
|
# 37
|
Uzbekistan: |
93.92 mcg/m³
|
1997  |
|
|
Environment in Uzbekistan
|
|
# 38
|
Congo, Republic of the: |
93.41 mcg/m³
|
1997  |
|
|
Environment in Congo, Republic of the
|
|
# 39
|
Georgia: |
91.36 mcg/m³
|
1997  |
|
|
Environment in Georgia
|
|
# 40
|
Senegal: |
90.82 mcg/m³
|
1997  |
|
|
Environment in Senegal
|
|
# 41
|
Turkmenistan: |
90.18 mcg/m³
|
1997  |
|
|
Environment in Turkmenistan
|
|
# 42
|
China: |
86.51 mcg/m³
|
1997  |
|
|
Environment in China
|
|
# 43
|
Bulgaria: |
85.93 mcg/m³
|
1997  |
|
|
Environment in Bulgaria
|
|
# 44
|
Algeria: |
85.9 mcg/m³
|
1997  |
|
|
Environment in Algeria
|
|
# 45
|
Guinea-Bissau: |
85.82 mcg/m³
|
1997  |
|
|
Environment in Guinea-Bissau
|
|
# 46
|
Thailand: |
83.3 mcg/m³
|
1997  |
|
|
Environment in Thailand
|
|
# 47
|
Peru: |
78.71 mcg/m³
|
1997  |
|
|
Environment in Peru
|
|
# 48
|
New Caledonia: |
77.24 mcg/m³
|
1997  |
|
|
Environment in New Caledonia
|
|
# 49
|
Iran: |
75.81 mcg/m³
|
1997  |
|
|
Environment in Iran
|
|
# 50
|
Burma: |
75.61 mcg/m³
|
1997  |
|
|
Environment in Burma
|
|
# 51
|
Jordan: |
74.28 mcg/m³
|
1997  |
|
|
Environment in Jordan
|
|
# 52
|
Argentina: |
74.2 mcg/m³
|
1997  |
|
|
Environment in Argentina
|
|
# 53
|
Guinea: |
74 mcg/m³
|
1997  |
|
|
Environment in Guinea
|
|
# 54
|
Bahrain: |
73.82 mcg/m³
|
1997  |
|
|
Environment in Bahrain
|
|
# 55
|
Vietnam: |
72.74 mcg/m³
|
1997  |
|
|
Environment in Vietnam
|
|
# 56
|
Tajikistan: |
71.31 mcg/m³
|
1997  |
|
|
Environment in Tajikistan
|
|
# 57
|
Chile: |
70.14 mcg/m³
|
1997  |
|
|
Environment in Chile
|
|
# 58
|
Mongolia: |
68.85 mcg/m³
|
1997  |
|
|
Environment in Mongolia
|
|
# 59
|
Congo, Democratic Republic of the: |
68.51 mcg/m³
|
1997  |
|
|
Environment in Congo, Democratic Republic of the
|
|
# 60
|
Cambodia: |
67.03 mcg/m³
|
1997  |
|
|
Environment in Cambodia
|
|
# 61
|
Sierra Leone: |
64.42 mcg/m³
|
1997  |
|
|
Environment in Sierra Leone
|
|
# 62
|
Zambia: |
63.83 mcg/m³
|
1997  |
|
|
Environment in Zambia
|
|
# 63
|
Qatar: |
63.54 mcg/m³
|
1997  |
|
|
Environment in Qatar
|
|
# 64
|
Mozambique: |
62.24 mcg/m³
|
1997  |
|
|
Environment in Mozambique
|
|
# 65
|
Philippines: |
59.82 mcg/m³
|
1997  |
|
|
Environment in Philippines
|
|
# 66
|
Lesotho: |
59.47 mcg/m³
|
1997  |
|
|
Environment in Lesotho
|
|
# 67
|
Cyprus: |
58.91 mcg/m³
|
1997  |
|
|
Environment in Cyprus
|
|
# 68
|
Namibia: |
57.84 mcg/m³
|
1997  |
|
|
Environment in Namibia
|
|
# 69
|
Djibouti: |
57.67 mcg/m³
|
1997  |
|
|
Environment in Djibouti
|
|
# 70
|
Turkey: |
57.49 mcg/m³
|
1997  |
|
|
Environment in Turkey
|
|
# 71
|
São Tomé and Príncipe: |
57.26 mcg/m³
|
1997  |
|
|
Environment in São Tomé and Príncipe
|
|
# 72
|
Guatemala: |
57.22 mcg/m³
|
1997  |
|
|
Environment in Guatemala
|
|
# 73
|
Comoros: |
57.19 mcg/m³
|
1997  |
|
|
Environment in Comoros
|
|
# 74
|
Côte d'Ivoire: |
56.88 mcg/m³
|
1997  |
|
|
Environment in Côte d'Ivoire
|
|
# 75
|
Israel: |
55.65 mcg/m³
|
1997  |
|
|
Environment in Israel
|
|
# 76
|
Panama: |
55.13 mcg/m³
|
1997  |
|
|
Environment in Panama
|
|
# 77
|
Lebanon: |
54.41 mcg/m³
|
1997  |
|
|
Environment in Lebanon
|
|
# 78
|
Central African Republic: |
53.98 mcg/m³
|
1997  |
|
|
Environment in Central African Republic
|
|
# 79
|
Greece: |
53.7 mcg/m³
|
1997  |
|
|
Environment in Greece
|
|
# 80
|
Madagascar: |
53.65 mcg/m³
|
1997  |
|
|
Environment in Madagascar
|
|
# 81
|
Mexico: |
53.35 mcg/m³
|
1997  |
|
|
Environment in Mexico
|
|
# 82
|
Nepal: |
53.29 mcg/m³
|
1997  |
|
|
Environment in Nepal
|
|
# 83
|
Tunisia: |
52.76 mcg/m³
|
1997  |
|
|
Environment in Tunisia
|
|
# 84
|
Afghanistan: |
52.64 mcg/m³
|
1997  |
|
|
Environment in Afghanistan
|
|
# 85
|
Haiti: |
52.05 mcg/m³
|
1997  |
|
|
Environment in Haiti
|
|
# 86
|
Liberia: |
51.75 mcg/m³
|
1997  |
|
|
Environment in Liberia
|
|
# 87
|
Korea, South: |
50.9 mcg/m³
|
1997  |
|
|
Environment in Korea, South
|
|
# 88
|
Moldova: |
50.3 mcg/m³
|
1997  |
|
|
Environment in Moldova
|
|
# 89
|
Malawi: |
50.15 mcg/m³
|
1997  |
|
|
Environment in Malawi
|
|
# 90
|
Macau: |
49.64 mcg/m³
|
1997  |
|
|
Environment in Macau
|
|
# 91
|
Somalia: |
48.63 mcg/m³
|
1997  |
|
|
Environment in Somalia
|
|
# 92
|
Laos: |
48.26 mcg/m³
|
1997  |
|
|
Environment in Laos
|
|
# 93
|
Kenya: |
47.81 mcg/m³
|
1997  |
|
|
Environment in Kenya
|
|
# 94
|
Benin: |
46.27 mcg/m³
|
1997  |
|
|
Environment in Benin
|
|
# 95
|
El Salvador: |
45.34 mcg/m³
|
1997  |
|
|
Environment in El Salvador
|
|
# 96
|
Tanzania: |
45.01 mcg/m³
|
1997  |
|
|
Environment in Tanzania
|
|
# 97
|
Bahamas, The: |
44.81 mcg/m³
|
1997  |
|
|
Environment in Bahamas, The
|
|
# 98
|
Brunei: |
44.74 mcg/m³
|
1997  |
|
|
Environment in Brunei
|
|
# 99
|
Jamaica: |
44.5 mcg/m³
|
1997  |
|
|
Environment in Jamaica
|
|
# 100
|
Barbados: |
44.06 mcg/m³
|
1997  |
|
|
Environment in Barbados
|
|
# 101
|
Togo: |
43.83 mcg/m³
|
1997  |
|
|
Environment in Togo
|
|
# 102
|
Poland: |
43.46 mcg/m³
|
1997  |
|
|
Environment in Poland
|
|
# 103
|
Singapore: |
43.02 mcg/m³
|
1997  |
|
|
Environment in Singapore
|
|
# 104
|
Saint Lucia: |
42.95 mcg/m³
|
1997  |
|
|
Environment in Saint Lucia
|
|
# 105
|
Faroe Islands: |
42.52 mcg/m³
|
1997  |
|
|
Environment in Faroe Islands
|
|
# 106
|
Rwanda: |
41.89 mcg/m³
|
1997  |
|
|
Environment in Rwanda
|
|
# 107
|
Burundi: |
41.86 mcg/m³
|
1997  |
|
|
Environment in Burundi
|
|
# 108
|
Suriname: |
41.78 mcg/m³
|
1997  |
|
|
Environment in Suriname
|
|
# 109
|
Dominican Republic: |
41.4 mcg/m³
|
1997  |
|
|
Environment in Dominican Republic
|
|
# 110
|
Swaziland: |
41.08 mcg/m³
|
1997  |
|
|
Environment in Swaziland
|
|
# 111
|
Guyana: |
40.1 mcg/m³
|
1997  |
|
|
Environment in Guyana
|
|
# 112
|
Slovenia: |
39.76 mcg/m³
|
1997  |
|
|
Environment in Slovenia
|
|
# 113
|
Honduras: |
39.7 mcg/m³
|
1997  |
|
|
Environment in Honduras
|
|
# 114
|
Zimbabwe: |
39.52 mcg/m³
|
1997  |
|
|
Environment in Zimbabwe
|
|
# 115
|
Virgin Islands: |
39.15 mcg/m³
|
1997  |
|
|
Environment in Virgin Islands
|
|
# 116
|
Spain: |
39.08 mcg/m³
|
1997  |
|
|
Environment in Spain
|
|
# 117
|
Netherlands: |
38.34 mcg/m³
|
1997  |
|
|
Environment in Netherlands
|
|
# 118
|
Fiji: |
38.19 mcg/m³
|
1997  |
|
|
Environment in Fiji
|
|
# 119
|
Saint Vincent and the Grenadines: |
38.03 mcg/m³
|
1997  |
|
|
Environment in Saint Vincent and the Grenadines
|
|
# 120
|
Ghana: |
37.43 mcg/m³
|
1997  |
|
|
Environment in Ghana
|
|
# 121
|
Austria: |
36.97 mcg/m³
|
1997  |
|
|
Environment in Austria
|
|
# 122
|
Costa Rica: |
36.82 mcg/m³
|
1997  |
|
|
Environment in Costa Rica
|
|
# 123
|
Nicaragua: |
36.62 mcg/m³
|
1997  |
|
|
Environment in Nicaragua
|
|
# 124
|
Japan: |
36.23 mcg/m³
|
1997  |
|
|
Environment in Japan
|
|
# 125
|
Bhutan: |
35.75 mcg/m³
|
1997  |
|
|
Environment in Bhutan
|
|
# 126
|
Croatia: |
35.74 mcg/m³
|
1997  |
|
|
Environment in Croatia
|
|
# 127
|
Papua New Guinea: |
35.62 mcg/m³
|
1997  |
|
|
Environment in Papua New Guinea
|
|
# 128
|
Italy: |
34.69 mcg/m³
|
1997  |
|
|
Environment in Italy
|
|
# 129
|
Portugal: |
34.65 mcg/m³
|
1997  |
|
|
Environment in Portugal
|
|
# 130
|
Albania: |
34.46 mcg/m³
|
1997  |
|
|
Environment in Albania
|
|
# 131
|
Ukraine: |
33.69 mcg/m³
|
1997  |
|
|
Environment in Ukraine
|
|
# 132
|
Vanuatu: |
33.53 mcg/m³
|
1997  |
|
|
Environment in Vanuatu
|
|
# 133
|
Kyrgyzstan: |
32.83 mcg/m³
|
1997  |
|
|
Environment in Kyrgyzstan
|
|
# 134
|
Malaysia: |
32.44 mcg/m³
|
1997  |
|
|
Environment in Malaysia
|
|
# 135
|
Dominica: |
32.37 mcg/m³
|
1997  |
|
|
Environment in Dominica
|
|
# 136
|
Brazil: |
32.3 mcg/m³
|
1997  |
|
|
Environment in Brazil
|
|
# 137
|
Maldives: |
31.94 mcg/m³
|
1997  |
|
|
Environment in Maldives
|
|
# 138
|
Belgium: |
30.83 mcg/m³
|
1997  |
|
|
Environment in Belgium
|
|
# 139
|
Lithuania: |
30.61 mcg/m³
|
1997  |
|
|
Environment in Lithuania
|
|
# 140
|
Netherlands Antilles: |
29.83 mcg/m³
|
1997  |
|
|
Environment in Netherlands Antilles
|
|
# 141
|
Switzerland: |
29.75 mcg/m³
|
1997  |
|
|
Environment in Switzerland
|
|
# 142
|
Solomon Islands: |
29.67 mcg/m³
|
1997  |
|
|
Environment in Solomon Islands
|
|
# 143
|
Ecuador: |
28.75 mcg/m³
|
1997  |
|
|
Environment in Ecuador
|
|
# 144
|
Grenada: |
28.45 mcg/m³
|
1997  |
|
|
Environment in Grenada
|
|
# 145
|
Morocco: |
28.39 mcg/m³
|
1997  |
|
|
Environment in Morocco
|
|
# 146
|
Kazakhstan: |
28.3 mcg/m³
|
1997  |
|
|
Environment in Kazakhstan
|
|
# 147
|
Macedonia, Republic of: |
28.18 mcg/m³
|
1997  |
|
|
Environment in Macedonia, Republic of
|
|
# 148
|
Colombia: |
27.04 mcg/m³
|
1997  |
|
|
Environment in Colombia
|
|
# 149
|
Czech Republic: |
27.04 mcg/m³
|
1997  |
|
|
Environment in Czech Republic
|
|
# 150
|
Hungary: |
26.57 mcg/m³
|
1997  |
|
|
Environment in Hungary
|
|
# 151
|
Romania: |
26.41 mcg/m³
|
1997  |
|
|
Environment in Romania
|
|
# 152
|
Cuba: |
26.15 mcg/m³
|
1997  |
|
|
Environment in Cuba
|
|
# 153
|
United States: |
25.88 mcg/m³
|
1997  |
|
|
Environment in United States
|
|
# 154
|
Denmark: |
25.52 mcg/m³
|
1997  |
|
|
Environment in Denmark
|
|
# 155
|
South Africa: |
25.37 mcg/m³
|
1997  |
|
|
Environment in South Africa
|
|
# 156
|
Saint Kitts and Nevis: |
25.23 mcg/m³
|
1997  |
|
|
Environment in Saint Kitts and Nevis
|
|
# 157
|
Latvia: |
25.06 mcg/m³
|
1997  |
|
|
Environment in Latvia
|
|
# 158
|
Bosnia and Herzegovina: |
24.9 mcg/m³
|
1997  |
|
|
Environment in Bosnia and Herzegovina
|
|
# 159
|
Russia: |
23.98 mcg/m³
|
1997  |
|
|
Environment in Russia
|
|
# 160
|
Luxembourg: |
23.97 mcg/m³
|
1997  |
|
|
Environment in Luxembourg
|
|
# 161
|
Germany: |
23.83 mcg/m³
|
1997  |
|
|
Environment in Germany
|
|
# 162
|
Slovakia: |
23.2 mcg/m³
|
1997  |
|
|
Environment in Slovakia
|
|
# 163
|
Puerto Rico: |
23.17 mcg/m³
|
1997  |
|
|
Environment in Puerto Rico
|
|
# 164
|
Ireland: |
23.07 mcg/m³
|
1997  |
|
|
Environment in Ireland
|
|
# 165
|
Canada: |
22.86 mcg/m³
|
1997  |
|
|
Environment in Canada
|
|
# 166
|
Finland: |
22.51 mcg/m³
|
1997  |
|
|
Environment in Finland
|
|
# 167
|
Iceland: |
21.77 mcg/m³
|
1997  |
|
|
Environment in Iceland
|
|
# 168
|
Estonia: |
21.12 mcg/m³
|
1997  |
|
|
Environment in Estonia
|
|
# 169
|
Belize: |
21.09 mcg/m³
|
1997  |
|
|
Environment in Belize
|
|
# 170
|
Mauritius: |
20.64 mcg/m³
|
1997  |
|
|
Environment in Mauritius
|
|
# 171
|
Cayman Islands: |
20.47 mcg/m³
|
1997  |
|
|
Environment in Cayman Islands
|
|
# 172
|
United Kingdom: |
20.2 mcg/m³
|
1997  |
|
|
Environment in United Kingdom
|
|
# 173
|
San Marino: |
20.07 mcg/m³
|
1997  |
|
|
Environment in San Marino
|
|
# 174
|
Norway: |
19.78 mcg/m³
|
1997  |
|
|
Environment in Norway
|
|
# 175
|
Australia: |
19.27 mcg/m³
|
1997  |
|
|
Environment in Australia
|
|
# 176
|
Serbia and Montenegro: |
18.74 mcg/m³
|
1997  |
|
|
Environment in Serbia and Montenegro
|
|
# 177
|
Uganda: |
18.64 mcg/m³
|
1997  |
|
|
Environment in Uganda
|
|
# 178
|
Equatorial Guinea: |
18.38 mcg/m³
|
1997  |
|
|
Environment in Equatorial Guinea
|
|
# 179
|
New Zealand: |
17.68 mcg/m³
|
1997  |
|
|
Environment in New Zealand
|
|
# 180
|
Antigua and Barbuda: |
17.42 mcg/m³
|
1997  |
|
|
Environment in Antigua and Barbuda
|
|
# 181
|
France: |
15.55 mcg/m³
|
1997  |
|
|
Environment in France
|
|
# 182
|
Sweden: |
14.12 mcg/m³
|
1997  |
|
|
Environment in Sweden
|
|
# 183
|
Venezuela: |
13.11 mcg/m³
|
1997  |
|
|
Environment in Venezuela
|
|
# 184
|
Belarus: |
11.92 mcg/m³
|
1997  |
|
|
Environment in Belarus
|
|
# 185
|
Gabon: |
8.48 mcg/m³
|
1997  |
|
|
Environment in Gabon
|
| |
Weighted average: |
61.2 mcg/m³ |
|
|