Table 4. Residues of plant protection products detected in samples taken from and around the agricultural plot No. Dz 3, and the Puck Bay.

< concentration below LOQ (limit of quantification).

Month of sampling (2018)	Plant protection product	Soil	Sediment	Surface water			Groundwater
				Drainage ditches	Bladzikowski Stream	The Puck Buy	Piezometer No. 311 & 562
		mg kg−1		µg dm−3
June	AMPA	<0.05	<0.05	<0.02	<0.02	<0.02	<0.02
July	Difenoconazole	0.20 ± 0.10	<0.045	<0.10	<0.10	<0.10	<0.10
	Fluopicolide	0.150 ± 0.074	<0.03	0.370 ± 0.093	<0.02	<0.02	<0.02
	AMPA	0.069 ± 0.035	<0.05	<0.02	<0.02	<0.02	<0.02
August	Fluopicolide	<0.03	<0.03	0.020 ± 0.010	<0.02	<0.02	<0.02
	Glyphosate	<0.05	<0.05	0.170 ± 0.085	<0.02	<0.02	0.021 ± 0.1052
	AMPA	<0.05	<0.05	0.20 ± 0.010	<0.02	<0.02	0.110 ± 0.0551