Tonga

The page has the score and ranking breakdown per indicator for Tonga. Clicking on an indicator name will take you to that indicator's score/rankings page for all countries in the EPI.

Environmental Performance Index
Current Rank Current Score Baseline Rank Baseline Score
Environmental Performance Index 57 62.49 51 60.12
Environmental Health
Current Rank Current Score Baseline Rank Baseline Score
Environmental Health 91 62.51 91 60.05
Air Quality
Current Rank Current Score Baseline Rank Baseline Score
Air Quality 87 68.96 90 66.44
Household Solid Fuels 117 22.41 113 16.11
PM2.5 Exposure 1 100.00 1 100.00
PM2.5 Exceedance 1 100.00 1 100.00
Water and Sanitation
Current Rank Current Score Baseline Rank Baseline Score
Water and Sanitation 98 46.97 95 44.66
Drinking Water 101 45.63 94 44.44
Sanitation 95 48.30 93 44.89
Heavy Metals
Current Rank Current Score Baseline Rank Baseline Score
Heavy Metals 38 71.83 31 69.25
Lead Exposure 38 71.83 31 69.25
Ecosystem Vitality
Current Rank Current Score Baseline Rank Baseline Score
Ecosystem Vitality 41 62.48 46 60.18
Biodiversity and Habitat
Current Rank Current Score Baseline Rank Baseline Score
Biodiversity and Habitat 71 82.75 61 80.80
Marine Protected Areas 58 86.11 39 86.10
Biome Protection (Global) 1 100.00 46 97.91
Biome Protection (National) 1 100.00 45 97.91
Species Protection Index -- -- -- --
Representativeness Index 163 7.06 170 1.77
Species Habitat Index -- -- -- --
Forests
Current Rank Current Score Baseline Rank Baseline Score
Forests -- -- -- --
Tree Cover Loss -- -- -- --
Fisheries
Current Rank Current Score Baseline Rank Baseline Score
Fisheries 10 76.86 1 98.63
Fish Stock Status 105 53.71 10 97.26
Regional Marine Trophic Index 1 100.00 1 100.00
Climate and Energy
Current Rank Current Score Baseline Rank Baseline Score
Climate and Energy 92 49.38 136 34.58
CO2 Emissions Intensity – Total 66 54.80 124 36.95
CO2 Emissions Intensity – Power -- -- -- --
Methane Emissions Intensity 155 34.84 124 22.37
N2O Emissions Intensity 170 16.58 151 15.42
Black Carbon Emissions Intensity 41 64.38 36 69.38
Air Pollution
Current Rank Current Score Baseline Rank Baseline Score
Air Pollution 48 63.12 38 69.92
SO2 Emissions Intensity 52 65.15 46 69.04
NOX Emissions Intensity 47 61.09 32 70.79
Water Resources
Current Rank Current Score Baseline Rank Baseline Score
Water Resources 108 58.45 108 58.45
Wastewater Treatment 108 58.45 108 58.45
Agriculture
Current Rank Current Score Baseline Rank Baseline Score
Agriculture 138 17.69 138 17.69
Sustainable Nitrogen Management 138 17.69 138 17.69