Skip to main content
Environmental Systems Research

Table 3 Range, mean and standard deviation of organophosphorus pesticides in water samples with respect to the various distance categories from the nearest cocoa farms in Dormaa West District, Ghana

From: Organophosphorus pesticide residues in soils and drinking water sources from cocoa producing areas in Ghana

Distance (m)

0–15 m

16–30 m

Above 30 m

Total means

WHO MRLs

Pesticides

Range

Mean ± SD

Range

Mean ± SD

Range

Mean ± SD

Mean ± SD

 

Chlorpyrifos (µg/L)

ND–0.03

0.03 ± –

0.02–0.06

0.05 ± 0.02

ND

ND

0.04 ± 0.01

0.05

Diazinon (µg/L)

0.03–0.06

0.04 ± 0.02

0.03–0.04

0.04 ± 0.01

ND

ND

0.04 ± 0.01

0.05

Pirimiphos-methyl (µg/L)

0.02–0.04

0.03 ± 0.01

0.01–0.05

0.03 ± 0.02

ND

ND

0.03 ± –

6.00

  1. SD standard deviation and ND non-detected/below detection, WHO MRLs World Health Organization maximum residue limit for pesticides in water, Limit of detection = 0.01 µg/L
Back to article page