British | CIRIA | 1971 | Exposed Samples | 3182 | 244100 | 10×10 | Grid | --- | [8, 9] |
Oslo | NILU Norwegian Institute for Air Research | 1985 | DRF | --- | 454 | --- | Isolines | --- | [27] |
Yucatán Peninsula | Centro de InvestigacioÂn y de Estudios Avanzados, Unidad MeÂrida | 1999 | Exposed Samples | 14 | 197600 | --- | Points | --- | [10] |
Korea | Andong National University | 2011 | Environmental Factors, Exposed Samples | 21 | 100210 | --- | Color blocks | --- | [11, 12] |
Australia | CSIRO | 1999 | Environmental Factors, Exposed Samples | 475 | 42000 | --- | Points | --- | [40] |
Australia and Vietnam | CSIRO and IMS | 2012 | Environmental Factors, Exposed Samples | 75(Vietnam), 8 (Vietnam) | 7617930 (Australia), 329556 (Vietnam) | 5×5 | Color blocks | Environment Model and Inverse Distance Weighting | [42] |
India | Central Electrochemical Research Institute | 2004 | Exposed Samples | 40 | 2980000 | --- | Points | --- | [7] |
Spain | Centro Nacional de Investigaciones Metalúrgicas (CENIM) | 2010 | DRF | 100 | 505925 | 0.5×0.5 | Color blocks | Kriging | [36] |
Abu Dhabi | CSIRO and ADWEA | 2011 | Environmental Factors | --- | 67340 | --- | Color blocks | Environment Model | [41] |
Slovakia | University of Zilina | 2015 | DRF | --- | 49037 | --- | Color blocks | --- | [28,29] |
Greater Athens | National Observatory of Athens | 2013 | DRF | 20 | 412 | --- | Color blocks | Kriging | [38] |
Switzerland | EMPA | 2004 | DRF | >60 | 41284 | 0.25×0.25 | Color blocks | Inverse Distance Weighting and Kriging | [32] |
European Part of Russia | Russian Academy of Sciences | 2002 | DRF | --- | 4268350 | 150×150 | Grid | --- | [34] |
Istanbul | Fatih University | 2013 | DRF | 50 | 5343 | --- | Color blocks | Kriging | [39] |
Peninsular Malaysia | Universiti Tenaga Nasional | 2013 | DRF | 17 | 130590 | --- | Color blocks | Inverse Distance Weighting | [43] |
Czech | SVUOM Ltd. | 2015 | DRF | --- | 78866 | 2×2 | Color blocks | Kriging | [30,31] |
Russia | Russian Academy of Sciences | 2019 | DRF | 6213 | 17098200 | 0.5 Latitude×1 Longitude | Color blocks | --- | [35] |
Canary Islands | Universidad de L as Palmas de Gran Canaria | 2016 | Exposed Samples | 39 | 7273 | --- | --- | --- | [13] |
Chile | Pontificia Universidad Católica de Valparaíso | 2016 | Exposed Samples | 31 | 756626 | --- | Color blocks | --- | [14] |
Europe | Royal Institute of Technology, Sweden Corrosion and Metals Research Institute, Sweden | 2006 | DRF | --- | --- | 50×50 | Color blocks | Kriging | [33] |
Madrid | Centro Nacional de Investigaciones Metalúrgicas (CENIM) | 2013 | DRF | 32 | 607 | 0.5×0.5 | Color blocks | Kriging | [37] |
South Africa | University of the Witwatersrand | 2019 | Exposed Samples | 100 | 1219090 | --- | Color blocks | --- | [15] |