Table 3: Recovery of pesticides in smoke condensate.

Sample/residueμg/gram plant% Recovery

Water pipe with filters
 Diazinon589 ± 31.00.08
 Paclobutrazol420 ± 32.510.2
 Bifenthrin77 ± 34.59.00
 Permethrin685 ± 34.910.9
 Cotton filter
 Diazinon190 11.024.9
 Paclobutrazol109 8.8030.1
 Bifenthrin20.8 9.1626.6
 Permethrin134 8.5225.1
 Carbon filterN/AN/A
Water pipe w/out filters
 Diazinon2930 15.142.2
 Paclobutrazol2040 11.349.5
 Bifenthrin389 10.145.4
 Permethrin3760 9.7259.9
Glass pipe
 Diazinon4270 12.361.5
 Paclobutrazol2789 13.867.4
 Bifenthrin516 12.860.3
 Permethrin4360 9.7069.5

Data presented as mean μg pesticide/gram plant material ± relative standard deviation. Sample size of 3 for all measurements.