**4.2.4 WWTP-D**

462 Pesticides in the Modern World - Risks and Benefits

other research works. As well as these pesticides, in these studies other pesticides were detected: α-endosulphan, hexachlorociclohexanes (α, β, χ, δ), atrazine, diuron, hexachlorobenzene, endrin, dieldrin, heptachlor, heptachlor epoxide B, pp'-DDD and pp'- DDE (Kastsoyiannis and Samara, 2004; Muñoz et al., 2008). Chemical structures of theses

Fig. 7. Chemical structures of pesticides detected in other effluents of WWTPs

Next, detected pesticides and their concentrations in studied effluents of each WWTP are

Among all analyzed pesticides in the effluent of the WWTP-A, 3 pesticides were detected: prometon, terbuthylazine and isoproturon. Detected concentrations of these pesticides were:

Among all analyzed pesticides in the effluent of the WWTP-B, only chlorpyrifos was

Among all analyzed pesticides in the effluent of the WWTP-C, 4 pesticides were detected: chlorfenvinfos, dimethoate, terbuthylazine and simazine. Detected concentrations of these

detected. The concentration of chlorpyrifos in this effluent was 0.074 μg L-1.

(Kastsoyiannis and Samara, 2004; Muñoz et al., 2008)

detailed.

**4.2.1 WWTP-A** 

**4.2.2 WWTP-B** 

**4.2.3 WWTP-C** 

pesticides were:


pesticides are shown in the figure 7.

Among all pesticides analyzed in the effluent of the WWTP-D, 4 pesticides were detected: 3,4-dichloroaniline, terbutryn, terbuthylazine and metholachlor. Detected concentrations of these pesticides were:

