The remaining analysed compounds showed a strong agreement
among the studies.
The results of the spatial evaluation from both
studies showed that the northern area of the Alqueva reservoir was
themost affected by pesticide contamination, demonstrating an intense
environmental impact from Spanish agricultural activities. Sra. Ajuda
and Lucefécit had the highest levels of pesticides, which indicate that,
in future works, these sampling locationsmust continue to be assessed