Table 3.

Quantification of dieldrin residues in resistant male adults after exposure of 1-day-old larvae to different dieldrin concentrations. For each concentration, 160 mg of brushed eggs were allowed to hatch for 8 h in a 30 mL hatching solution. One-day-old larvae were then exposed to dieldrin for 16 h before being rinsed and reared until pupation. All pupae were collected, sex separated and counted. For each repetition, female contamination rate and male recovery were measured. Three repetitions were performed for each dieldrin concentration. Dieldrin quantification was performed on 3 pools of 2000 adult males each for each dieldrin treatment.

Dieldrin Concentration (ppm)	Female Contamination (%)	Male Recovery (%)	Dieldrin (µg/L)	Dieldrin (µg/kg)	Dieldrin/Mosquito (µg)
0	51.1	100
0.1	18.65 (±3.51)	93.87 (±8.01)	≤2	≤4.71 (±0.03)	≤2 × 10–6
0.2	6.87 (±2.78)	87.19 (±5.63)	≤2	≤4.42 (±0.33)	≤2 × 10–6
0.4	4.10 (±1.25)	91.89 (±1.17)	≤2	≤4.10 (±0.06)	≤2 × 10–6
0.6	3.09 (±0.29)	89.98 (±3.17)	≤2.33	≤4.64 (±1.06)	≤2.33 × 10–6
1	2.42 (±1.07)	74.97 (±14.56)	6.33	13.17 (±5.44)	6.66 × 10–6