Area

∑OPs

Chlorpyrifos

Dimethoate

Diazinon

Malathion

Reference

Africa

Zigo River, Togo

0.82 - 26.93

ND

ND

ND

[21]

Asia

Guan River, China

0.0 - 2.18

[20]

America

Zumpango Lake, Mexico

5120.0

110.0

[26]

Europa

Portuguese rivers

11.5 - 19.2

[4]

Arc River, France

0.01 - 0.02

[30]

Guadalquivir River, Spain

0.7 - 15.9

0.2 - 175.5

[22]

Mediterranean Sea

Damietta Channel, Egypt

303.8

279.0

5.12

[27]

Llobregat & Anoia rivers, Spain

ND

0.09 - 1.29

ND

[24]

Llobregat River, Spain

0.39 - 130.97

0.04 - 2.53

[23]

Berre Lagoon, France

ND

[31]

Turia & Jucar rivers, Spain

4.51 - 55.95

ND

ND

ND

[25]

Tiber River, Italy

1.42 - 68.5

0.26 - 32.85

ND

0.18 - 0.54

ND

[2]

Alvarado Lagoon, Mexico

0.2 - 79.8

0.17 - 0.23

78.7 - 79.0

ND

ND

This study