| Anuradhapura | Kurunegala | Moneragala | Puttalam | Trincomalee |
---|
Ac | As | Ac | As | Ac | As | Ac | As | Ac | As |
---|
Est1 | 52 | 10 | 51 | 18 | 44 | 21 | 30 | 17 | 15 | 06 |
GST2 | 28 | 19 | 13 | 26 | 10 | 43 | 36 | 45 | 60 | 09 |
MO3 | 24 | 38 | 38 | 28 | 56 | 27 | 27 | 20 | 72 | 86 |
MCE4 | + | + | - | ++ | +++ | +++ | + | + | +++ | +++ |
- Ac = An. culicifacies
- As = An. subpictus
- 1. % population having esterase specific activity above 0.25 μmol/mg/min
- 2. % population having glutathione S-transferase specific activity above 0.40 μmol/mg/min
- 3. % population having monooxygenase levels above 0.35 equivalent units of cytochrome P450
- 4. malathion carboxylesterase activity as measured by malathion metabolism studies (see text for details)
- - no activity ++ – moderate +++ – high