Assessment of Impacts Produced by Anthropogenic Sources in a Little City near an Important Industrial Area (Modugno, Southern Italy)

Table 1

Annual mean concentrations of the investigated pollutants in each sampling sites expressed as 𝜇g/m³.

Step	Parameter	Value
Cartridge conditioning	Conditioning time	15 min
	Conditioning temperature	310°C
	Gas flow	1 mL/min
	Split flow	50 mL/min
	Purge time	1 min—trap in line
	Desorption time	10 min
Adsorbent tube desorption	Desorption temperature	300°C
	Temperature of cold trap	−10°C
	Desorption flow	20 mL/min
Focusing trap desorption	Desorption time	3 min
	Temperature of cold trap desorption	300°C
	Split flow	44 mL/min
	Temperature transfer line	150°C
GC analysis	Gas carrier	He
	Gas flow	1.7 mL/min
	Analytical column	Polyethylene glycol 30 m × 0.25 mm ID, 0.25 𝜇m
	SUPELCOWAX (Supelco)	Stationary phase thickness
		40°C per 3 min, 8°C/min fino a 80°C
	Oven temperature	80°C per 1 min, 20°C/min fino a 270°C
		270°C per 3 min.