| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| gas produced from landfill waste | 0.23 | 0.3 | 7277 | 73 |
| which gas is produced from landfill wastes | 0.81 | 1 | 3094 | 13 |
| which gas comes from landfill | 1.48 | 0.7 | 551 | 38 |
| how is landfill gas produced | 0.38 | 0.5 | 4406 | 35 |
| what gases are produced by landfills | 0.15 | 1 | 9848 | 63 |
| natural gas from landfills | 1.86 | 0.6 | 6488 | 16 |
| what is landfill gas | 1.1 | 0.3 | 1243 | 3 |
| landfill gas energy production | 0.47 | 0.8 | 4184 | 77 |
| how is landfill gas collected | 1.72 | 0.5 | 8910 | 41 |
| composition of landfill gas | 0.83 | 0.1 | 7057 | 83 |
| waste management landfill gas | 0.88 | 0.9 | 234 | 98 |
| landfill gas to energy | 0.65 | 0.9 | 9696 | 81 |
| is a flammable gas produced by landfills | 0.23 | 0.7 | 3085 | 27 |
| landfill gas as an energy source | 0.28 | 0.8 | 2189 | 23 |
| greenhouse gases from landfills | 0.11 | 0.9 | 8827 | 42 |
| how is methane gas produced in landfills | 1.17 | 0.1 | 1077 | 74 |
| landfill gas to electricity | 0.47 | 0.1 | 6072 | 63 |
| methane gas released by landfills is | 0.91 | 0.8 | 889 | 4 |
| typical landfill gas composition | 2 | 0.3 | 8816 | 14 |
| landfills and methane gas | 0.11 | 0.4 | 2174 | 47 |
| what does landfill produce | 1.88 | 0.1 | 8359 | 42 |
| do landfills produce greenhouse gases | 1.75 | 0.3 | 5912 | 26 |
