Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
history of landfills in the united states | 0.72 | 0.8 | 6761 | 56 |
first landfill in the us | 1.64 | 0.7 | 755 | 65 |
history of landfill sites | 1.47 | 0.1 | 7834 | 66 |
how long have landfills been around | 0.18 | 0.4 | 3089 | 45 |
when was the first landfill created | 1.62 | 0.7 | 1840 | 4 |
when were landfills invented | 1.22 | 0.2 | 2892 | 17 |
history of landfill design | 1.02 | 0.4 | 738 | 70 |
how did landfill start | 0.45 | 0.8 | 6188 | 83 |
landfills in the united states | 1.97 | 0.6 | 6098 | 88 |
when did landfills become popular | 0.85 | 0.2 | 1065 | 1 |
history of landfill regulations | 0.92 | 0.9 | 196 | 5 |
history of landfill gas | 1.04 | 0.3 | 4780 | 86 |
history of landfill management | 1.37 | 0.6 | 6340 | 68 |
history of landfill engineering | 1.18 | 1 | 846 | 37 |
history of landfill tax | 1.86 | 0.3 | 1908 | 57 |
history of landfill mining | 0.13 | 0.8 | 7203 | 80 |
history of landfill diversion | 0.46 | 0.9 | 617 | 71 |
at the beginning of 2010 a landfill | 1.6 | 0.7 | 3791 | 78 |
historical landfill sites map | 0.3 | 0.9 | 4742 | 72 |
when did municipal landfills open | 1.67 | 0.5 | 6999 | 93 |
historic landfill site map | 1.24 | 0.1 | 5412 | 3 |