Pesticidas
| Sustancia | Fórmula | Recomendación de la OMS | |
| Alaclor | C14 H20 Cl N O2 | 20 μg/l | |
| Aldicarb | C7 H14 N2 O4 S | 10 μg/l | |
| Aldrina y dieldrina | C12 H8 Cl6/ C12 H8 Cl6 O | 0.03 μg/l | |
| Atrazina | C8 H14 Cl N5 | 2 μg/l | |
| Bentazona | C10 H12 N2 O3 S | 30 μg/l | |
| Carbofurano | C12 H15 N O3 | 5 μg/l | |
| Clordane | C10 H6 Cl8 | 0.2 μg/l | |
| Clorotoluron | C10 H13 Cl N2 O | 30 μg/l | |
| DDT | C14 H9 Cl5 | 2 μg/l | |
| 1,2-Dibromo-3-cloropropano | C3 H5 Br2 Cl | 1 μg/l | |
| 2,4-Diclorofenoxiacético ácido (2,4-D) | C8 H6 Cl2 O3 | 30 μg/l | |
| 1,2-Dicloropropano | C3 H6 Cl2 | No hay recomendación | |
| 1,3-Dicloropropano | C3 H6 Cl2 | 20 μg/l | |
| 1,3-Dicloropropeno | CH3 CHClCH2 Cl | No hay recomendación | |
| Etileno dibromuro (EDB) | Br CH2 CH2 Br | No hay recomendación | |
| Heptaclor y heptaclor epóxido | C10 H5 Cl7 | 0.03 μg/l | |
| Hexachlorobenzene (HCB) | C10 H5 Cl7 O | 1 μg/l | |
| Isoproturon | C12 H18 N2 O | 9 μg/l | |
| Lindane | C6 H6 Cl6 | 2 μg/l | |
| MCPA | C9 H9 Cl O3 | 2 μg/l | |
| Metoxicloro | (C6H4OCH3)2CHCCl3 | 20 μg/l | |
| Metolacloro | C15 H22 Cl N O2 | 10 μg/l | |
| Molinate | C9 H17 N O S | 6 μg/l | |
| Pendimetalina | C13 H19 O4 N3 | 20 μg/l | |
| Pentaclorofenol (PCP) | C6 H Cl5 O | 9 μg/l | |
| Permetrina | C21 H20 Cl2 O3 | 20 μg/l | |
| Propanilo | C9 H9 Cl2 N O | 20 μg/l | |
| Piridato | C19H23ClN2O2S | 100 μg/l | |
| Simazina | C7 H12 Cl N5 | 2 μg/l | |
| Trifluralina | C13 H16 F3 N3 O4 | 20 μg/l | |
| Herbicidas clorofenoxi (excluyendo 2,4-D y el MCPA) | 2,4-DB | C10 H10 Cl2 O3 | 90 μg/l |
| Dicclorprop | C9 H8 Cl2 03 | 100 μg/l | |
| Fenoprop | C9H7Cl3O3 | 9 μg/l | |
| MCPB | C11 H13 Cl O3 | No hay recomendación | |
| Mecoprop | C10H11ClO3 | 10 μg/l | |
| 2,4,5-T | C8 H5 Cl3 O3 | 9 μg/l | |