AquaCompliance EU

Priority Substance Encyclopedia

All 70 priority substances and 6 river basin specific pollutants (RBSP) listed under Directive (EU) 2026/805. EQS values, monitoring guidance, and compliance deadlines.

74 substances

2·Industrial

Anthracene

PHSuPBT

0.1 μg/L

AA-EQS

4·Industrial

Benzene

10 μg/L

AA-EQS

5·Industrial

Brominated diphenylethers

PHSuPBTBiota

Biota

EQS

6·Metals

Cadmium

Cadmium and its compounds

PHSuPBT

HD

AA-EQS

7·Industrial

C10-13-chloroalkanes

PHSuPBT

0.4 μg/L

AA-EQS

9·Pesticides

Chlorpyrifos

PHSuPBT

4.60e-4 μg/L

AA-EQS

9a·Pesticides

Cyclodiene pesticides sum

Cyclodiene pesticides — sum (Aldrin + Dieldrin + Endrin + Isodrin)

PHS

0.01 μg/L

AA-EQS

9b·Pesticides

DDT total

PHS

0.025 μg/L

AA-EQS

10·Industrial

1,2-Dichloroethane

PHS

10 μg/L

AA-EQS

11·Industrial

Dichloromethane

20 μg/L

AA-EQS

12·Industrial

DEHP

Di(2-ethylhexyl) phthalate (DEHP)

PHSuPBT

1.3 μg/L

AA-EQS

13·Pesticides

Diuron

0.049 μg/L

AA-EQS

14·Pesticides

Endosulfan

PHS

0.005 μg/L

AA-EQS

15·Industrial

Fluoranthene

PHSuPBTBiota

7.62e-4 μg/L

AA-EQS

16·Pesticides

Hexachlorobenzene

PHSuPBTBiota

Biota

EQS

17·Industrial

Hexachlorobutadiene

PHSuPBTBiota

9.50e-4 μg/L

AA-EQS

18·Pesticides

Hexachlorocyclohexane

PHSuPBT

0.02 μg/L

AA-EQS

19·Pesticides

Isoproturon

0.3 μg/L

AA-EQS

20·Metals

Lead

Lead and its compounds

PHSuPBT

1.2 μg/L

AA-EQS

21·Metals

Mercury

Mercury and its compounds

PHSuPBTBiota

Biota

EQS

22·Industrial

Naphthalene

2 μg/L

AA-EQS

23·Metals

Nickel

Nickel and its compounds

2 μg/L

AA-EQS

24·Industrial

Nonylphenols

PHS

0.037 μg/L

AA-EQS

25·Industrial

Octylphenols

PHS

0.1 μg/L

AA-EQS

26·Industrial

Pentachlorobenzene

PHSuPBT

0.007 μg/L

AA-EQS

27·Pesticides

Pentachlorophenol

PHS

0.4 μg/L

AA-EQS

28·Combustion

PAHs (sum of 8)

Polycyclic aromatic hydrocarbons — sum of 8 (as BaP equivalents)

PHSuPBTBiota

Biota

EQS

29a·Industrial

Tetrachloroethylene

10 μg/L

AA-EQS

29b·Industrial

Trichloroethylene

PHS

10 μg/L

AA-EQS

30·Pesticides

Tributyltin

Tributyltin compounds

PHSuPBTBiota

2.00e-4 μg/L

AA-EQS

32·Industrial

Trichloromethane

Trichloromethane (chloroform)

2.5 μg/L

AA-EQS

33·Pesticides

Trifluralin

PHS

0.03 μg/L

AA-EQS

34·Pesticides

Dicofol

PHSuPBTBiota

0.00445 μg/L

AA-EQS

36·Pesticides

Quinoxyfen

PHSuPBT

0.15 μg/L

AA-EQS

37·Industrial

Dioxins and dioxin-like compounds

PHSuPBTBiota

Biota

EQS

38·Pesticides

Aclonifen

0.12 μg/L

AA-EQS

39·Pesticides

Bifenox

0.012 μg/L

AA-EQS

40·Pesticides

Cybutryne

0.0025 μg/L

AA-EQS

41·Pesticides

Cypermethrin

uPBT

3.00e-5 μg/L

AA-EQS

42·Pesticides

Dichlorvos

6.00e-4 μg/L

AA-EQS

43·Industrial

HBCDD

Hexabromocyclododecane (HBCDD)

PHSuPBTBiota

4.60e-4 μg/L

AA-EQS

44·Pesticides

Heptachlor

Heptachlor and heptachlor epoxide

PHSuPBTBiota

1.70e-7 μg/L

AA-EQS

45·Pesticides

Terbutryn

0.065 μg/L

AA-EQS

46·Pharmaceuticals

EE2 (Ethinylestradiol)

17α-Ethinylestradiol (EE2)

1.70e-5 μg/L

AA-EQS

47·Pharmaceuticals

E2 (Estradiol)

17β-Estradiol (E2)

1.80e-4 μg/L

AA-EQS

48·Pesticides

Acetamiprid

0.037 μg/L

AA-EQS

49·Pharmaceuticals

Azithromycin

uPBT

0.019 μg/L

AA-EQS

50·Pesticides

Bifenthrin

uPBT

9.50e-5 μg/L

AA-EQS

51·Industrial

Bisphenol-A

Bisphenol-A (BPA)

PHSBiota

1.70e-4 μg/L

AA-EQS

52·Pharmaceuticals

Carbamazepine

2.5 μg/L

AA-EQS

53·Pharmaceuticals

Clarithromycin

uPBT

0.13 μg/L

AA-EQS

54·Pesticides

Clothianidin

0.01 μg/L

AA-EQS

55·Pesticides

Deltamethrin

uPBT

1.70e-6 μg/L

AA-EQS

56·Pharmaceuticals

Diclofenac

uPBT

0.04 μg/L

AA-EQS

57·Pharmaceuticals

Erythromycin

uPBT

0.5 μg/L

AA-EQS

58·Pesticides

Esfenvalerate

uPBT

1.70e-5 μg/L

AA-EQS

59·Pharmaceuticals

E1 (Estrone)

Estrone (E1)

3.60e-4 μg/L

AA-EQS

60·Pesticides

Glyphosate

0.1 μg/L

AA-EQS

61·Pharmaceuticals

Ibuprofen

uPBT

0.14 μg/L

AA-EQS

62·Pesticides

Imidacloprid

0.0068 μg/L

AA-EQS

63·Pesticides

Nicosulfuron

0.0087 μg/L

AA-EQS

64·Pesticides

Permethrin

uPBT

2.70e-4 μg/L

AA-EQS

65·Industrial

PFAS (sum of 25)

PFAS — sum of 25 (as PFOA equivalents)

PHSuPBTBiota

0.0044 μg/L

AA-EQS

66·Metals

Silver

Silver and its compounds

0.01 μg/L

AA-EQS

67·Pesticides

Thiacloprid

0.01 μg/L

AA-EQS

68·Pesticides

Thiamethoxam

0.04 μg/L

AA-EQS

69·Pesticides

Triclosan

0.02 μg/L

AA-EQS

70·Pesticides

Pesticide sum

Sum of all listed pesticides

0.2 μg/L

AA-EQS

RBSP 1·Pesticides

Alachlor

RBSP

0.3 μg/L

AA-EQS

RBSP 2·Industrial

Carbon tetrachloride

RBSP

12 μg/L

AA-EQS

RBSP 3·Pesticides

Chlorfenvinphos

RBSP

0.1 μg/L

AA-EQS

RBSP 4·Pesticides

Simazine

RBSP

1 μg/L

AA-EQS

RBSP 5·Industrial

Trichlorobenzenes

RBSP

0.4 μg/L

AA-EQS

RBSP 6·Pesticides

Atrazine

RBSP

0.6 μg/L

AA-EQS

PHS = Priority Hazardous Substance (emissions must cease/phase out within 20 years of listing). uPBT = Ubiquitous Persistent, Bioaccumulative and Toxic (reduced monitoring frequency allowed). RBSP = River Basin Specific Pollutant (demoted from EU priority list; national EQS mandatory).

na = MAC-EQS not applicable (AA-EQS sufficient). nd = not derived (insufficient acute toxicity data). All values in μg/L unless noted. Source: Directive (EU) 2026/805 Annex VI.