| Historic (1865-12-01 to
2009-12-20) |
| Rank |
Entity Name |
Count |
Score |
Coref./Ref. |
| 1 |
fluorine
|
12 |
150.1 |
  |
| 2 |
rats
|
8 |
97.2 |
  |
| 3 |
perfluorinated compounds
|
6 |
83.8 |
  |
| 4 |
MTBE
|
4 |
60.3 |
  |
| 5 |
pefluorooctanoate
|
4 |
57.5 |
  |
| 6 |
extractable organic fluorine
|
4 |
57.0 |
  |
| 7 |
PFC
|
3 |
41.0 |
  |
| 8 |
HPLC-MS/MS
|
2 |
31.2 |
  |
| 9 |
combustion ion chromatography
|
2 |
31.2 |
  |
| 10 |
EOF-Fr1
|
2 |
30.1 |
  |
| 11 |
Fr1
|
2 |
30.1 |
  |
| 12 |
Fr2
|
2 |
30.1 |
  |
| 13 |
LOQ
|
2 |
30.1 |
  |
| 14 |
PFOA/known PFC
|
2 |
30.1 |
  |
| 15 |
perfluorochemicals
|
2 |
29.8 |
  |
|
| 10 years (1999-12-23 to
2009-12-20) |
| Rank |
Entity Name |
Count |
Score |
Coref./Ref. |
| 1 |
fluorine
|
12 |
140.7 |
  |
| 2 |
rats
|
8 |
91.0 |
  |
| 3 |
perfluorinated compounds
|
6 |
79.1 |
  |
| 4 |
MTBE
|
4 |
57.2 |
  |
| 5 |
pefluorooctanoate
|
4 |
54.4 |
  |
| 6 |
extractable organic fluorine
|
4 |
53.9 |
  |
| 7 |
PFC
|
3 |
38.7 |
  |
| 8 |
HPLC-MS/MS
|
2 |
29.6 |
  |
| 9 |
combustion ion chromatography
|
2 |
29.6 |
  |
| 10 |
EOF-Fr1
|
2 |
28.6 |
  |
| 11 |
Fr1
|
2 |
28.6 |
  |
| 12 |
Fr2
|
2 |
28.6 |
  |
| 13 |
LOQ
|
2 |
28.6 |
  |
| 14 |
PFOA/known PFC
|
2 |
28.6 |
  |
| 15 |
perfluorochemicals
|
2 |
28.2 |
  |
|
| 365 days (2008-12-20 to
2009-12-20) |
| Rank |
Entity Name |
Count |
Score |
Coref./Ref. |
| 1 |
rats
|
8 |
66.9 |
  |
| 2 |
fluorine
|
5 |
47.5 |
  |
| 3 |
MTBE
|
4 |
45.1 |
  |
| 4 |
pefluorooctanoate
|
4 |
42.4 |
  |
| 5 |
perfluorinated compounds
|
4 |
41.5 |
  |
| 6 |
extractable organic fluorine
|
3 |
32.7 |
  |
| 7 |
PFC
|
3 |
29.7 |
  |
| 8 |
EOF-Fr1
|
2 |
22.6 |
  |
| 9 |
Fr1
|
2 |
22.6 |
  |
| 10 |
Fr2
|
2 |
22.6 |
  |
| 11 |
LOQ
|
2 |
22.6 |
  |
| 12 |
PFOA/known PFC
|
2 |
22.6 |
  |
| 13 |
Japan
|
2 |
21.8 |
  |
| 14 |
PFOS
|
2 |
21.2 |
  |
| 15 |
|
0 |
0 |
  |
|