CHMU - Tabular overview of air quality of the Czech Republic

Year:					1998
Pollutant:					SO2-sulphur dioxide
Station:					1258 - Pihel
Code:					CZCLRVPIH
Institution:					VURV
Region:					Severocesky
District:					Ceska Lipa
IHd:					150
Measure method:					West-Gaeke spectrophotometry
Unit:					ug/m^3

Average daily concentrations
Day/ Month	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	X	Max	N
1	31	37	37	28	29	33	27	34	20	21	26	23	43	84	63	53	23	24	26	22	23	20	37	52	50	111	102	94	62	42	36	42.35	111.00	31.00
2	44	39	78	37	47	107	60	30	25	29	48	36	12	12	24	23	23	28	34	42	36	27	31	19	20	15	22	15	~	~	~	34.39	107.00	28.00
3	14	25	28	28	23	20	24	26	26	20	27	30	37	28	25	27	23	23	27	23	25	25	27	40	30	37	32	39	26	30	33	27.35	40.00	31.00
Quarterly and annual absolute and relative frequency of average daily concentrations partial and total air pollution indexes according to classes of IHd multiples
Quarter	concentration classes in IHd multiples																total ind.		part of it in IHd multiples														max. date
	<=1/3		<=2/3		<=1.0		<=1.5		<=2.0		<=3.0		<=4.0		>		total ind.		1/3		2/3		1.0		1.5		2.0		3.0		4.0
	concentration classes in measurement units																		part of above IHd multiples in meas. units
	0- 50		51- 100		101- 150		151- 225		226- 300		301- 450		451- 600		over 600				50		100		150		225		300		450		600
ABS.	79		8		3		0		0		0		0		0		90		11		3		0		0		0		0		0		111
REL.	87.7		8.8		3.3		0.0		0.0		0.0		0.0		0.0		100.0		12.2		3.3		0.0		0.0		0.0		0.0		0.0		26.1
ID	87		8		3		0		0		0		0		0		100
ABS.	0		0		0		0		0		0		0		0		0²		0		0		0		0		0		0		0		0
ABS.	0		0		0		0		0		0		0		0		0²		0		0		0		0		0		0		0		0
ABS.	0		0		0		0		0		0		0		0		0²		0		0		0		0		0		0		0		0
Year
ABS.	79		8		3		0		0		0		0		0		90²		11		3		0		0		0		0		0		111
REL.	87.7		8.8		3.3		0.0		0.0		0.0		0.0		0.0		100.0		12.2		3.3		0.0		0.0		0.0		0.0		0.0		26.1
ID	87		8		3		0		0		0		0		0		100
Note:				¹ frequency < 60 per quarter, or < 240 per annum
Note:				² frequency < 30 per quarter, or < 120 per annum