Table 1

PM₁₀ measurements methods in the 19 Apheis-2 cities measuring PM₁₀

City	Year	Area* (km²)	Area† (km²)	PM 10‡	TSP§	PM 10 HIA¶	TSP HIA¶	Interval	QA/QC**	Method	Factor††
Total area; †area covered by air network; ‡particulate matter with a size lower than 10 μm; §total suspended particulate; ¶selected sites for health impact assessment (HIA); *quality assessment/quality control; ††use of correction or conversion factor; ‡‡tapered oscillating microbalance method; §§four weekdays (Monday–Thursday).
Bordeaux	2000	560	283	7		4		24 h	yes	TEOM‡‡
Bucharest	1999	238	180		5		4	24 h§§	yes	gravimetric	PM₁₀ = TSP×0.6
Budapest	1999	524	524		8		8	cont.	yes	ß-ray-absorption	PM₁₀ = TSP×0.58
Celje	1999	230	100	2		1		cont.		TEOM (50°C)
Cracow	1999	320	320	6		1		24 h	yes	ß-ray-absorption
Gothenburg	2000	282	282	4		1		cont.	yes	TEOM (50°C)	1.03×PM₁₀+3 µg/m³
Lille	2000	612	612	7		5		cont.	don’t	TEOM
Ljubljana	1999	902	400	2		2		cont.	yes	TEOM (50°C)
London	1999	1600	1600	13		1		cont.	yes	TEOM
Lyon	2000	500	132	4	1	2				TEOM
Madrid	1998	606	606	25		14		cont.	yes	TEOM	1.3
Marseille	2000	355	355	4		3		cont.	yes	TEOM (50°C)
Paris	1998	762	762	3		3		hourly	yes	TEOM
Rome	1999	1495	320	4		4		cont.	yes	ß-ray-absorption
Seville	1999	141	90	10		6		cont.	yes	ß-ray-absorption
Stockholm	2000	500	500	3		1		cont.	yes	TEOM (50°C)	1.03×PM₁₀+3 µg/m³
Strasbourg	1999	304	304	1		1		cont.	yes	TEOM (50°C)
Tel Aviv	1996	171	52	2		2		cont.	yes	TEOM
Toulouse	2000	713	635	3		2		cont.	yes	TEOM