Concentrations of particulate matter in ambient air

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Air pollution with PM₁₀ was on average lower in 2020 than in previous years. The number of exceedances of the daily limit value for PM₁₀ (50 ug/m³) surpassed allowed number of exceedances (35) only at one monitoring site in mainland Slovenia, and at this monitoring site two out of thirty-six exceedances are due to desert dust, which according to legislation is considered as natural source of pollution and is not taken into account with prescribed quality standards. The annual limit value for PM₁₀ and PM_2.5 particles was not exceeded at any monitoring site. Less polluted air with particles is the result of favorable meteorological conditions that prevailed in the winter period of the year. These allowes the dilution of emissions from small combustion plants and traffic, which are the main sources of PM₁₀ particles emissions in Slovenia. Despite the fact that in recent years there has been a noticeable trend of decreasing particulate matter levels, occasionally, especially in adverse weather conditions, we still measure levels that pose a risk to our health.

Charts

Figure ZR08-1: Number of days with exceeded 24-hour limit concentration of 50 µg PM10/m3 (may not be exceeded more than 35 times per calendar year)

Sources:

National automatic measurement air quality network database, Environmental Agency of the Republic of Slovenia, database of complementary automated measurement networks (TE Šoštanj, TE-TO Ljubljana, EIS Anhovo, MO Ljubljana, MO Celje, MO Maribor, Občina Miklavž na Dravskem polju, Občina Ruše in MO Ptuj) (12.03.2021)

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	Urban background[number of days]	- Ljubljana Bežigrad[number of days]	- Ljubljana BF[number of days]	- Celje[number of days]	- Hrastnik[number of days]	- Koper[number of days]	- Nova Gorica[number of days]	- Novo mesto[number of days]	- Kranj[number of days]	- Velenje[number of days]	- Maribor Vrbanski[number of days]	- Ptuj[number of days]	- MB Tezno[number of days]	Suburban background[number of days]	- Trbovlje[number of days]	- Pesje[number of days]	- Škale[number of days]	- Šoštanj[number of days]	Urban-traffic type[number of days]	- Maribor center[number of days]	- Zagorje[number of days]	- Ljubljana center[number of days]	- Ljubljana Gospodarsko[number of days]	- Celje Mariborska[number of days]	- Nova Gorica Grčna[number of days]	- Murska Sobota Cankarjeva[number of days]	- Spuhlja[number of days]	- Grosuplje[number of days]	Rural/Agricultural type[number of days]	- Prapretno[number of days]	- Murska Sobota - Rakičan[number of days]	- Ruše[number of days]	- Miklavž[number of days]	Rural/Industrial type[number of days]	- Morsko[number of days]	- Gorenje Polje[number of days]	- Žerjav[number of days]	Rural type/natural background[number of days]	- Iskrba[number of days]
2005	68	70	0	97	0	0	37	0	0	0	0	0	0	65	157	23	15	0	111	101	143	0	0	0	0	0	0	0	40	15	65	0	0		0	0	0	5	5
2006	48	47	0	59	0	40	47	0	0	0	0	0	0	43	86	24	19	0	102	108	106	0	0	0	0	0	0	0	0	33	54	0	0		0	0	0	5	5
2007	38	46	0	48	0	19	40	0	0	0	0	0	0	35.33	81	14	11	0	95	91	99	0	0	0	0	0	0	0	0	36	37	0	0	17	18	16	0	0	0
2008	29.25	36	0	37	0	11	33	0	0	0	0	0	0	31	72	9	12	0	88	54	109	101	0	0	0	0	0	0	33.50	25	42	0	0	20	16	24	0	0	0
2009	24.60	30	25	42	0	2	24	0	0	0	0	0	0	24.33	48	12	13	0	67.67	35	56	112	0	0	0	0	0	0	25	20	30	0	0	15	14	16	0	5	5
2010	37.50	43	32	58	30	15	25	60	37	0	0	0	0	28.67	64	10	12	0	63	47	68	74	0	0	0	0	0	0	40.50	29	52	0	0	15.67	5	13	29	5	5
2011	48.44	63	51	73	51	21	28	69	55	0	25	0	0	34.67	68	16	20	0	77.67	64	75	94	0	0	0	0	0	0	60	49	71	0	0	36.67	13	18	79	3	3
2012	25.30	27	21	55	17	23	19	45	27	11	8	0	0	25.33	65	2	9	0	67.67	34	62	107	0	0	0	0	0	0	34.50	25	44	0	0	21.67	10	11	44	1	1
2013	23.73	22	24	51	15	10	12	49	28	8	7	0	0	14	50	6	0	0	52.67	36	48	74	0	0	0	0	0	0	20.50	3	38	0	0	15	3	5	37	0	0
2014	19.73	19	12	41	10	16	19	22	12	15	10	0	0	12.50	33	12	5	0	39.33	25	38	55	0	0	0	0	0	0	17.50	2	33	0	0	7.33	8	11	3	0	0
2015	33.36	43	35	70	22	28	24	40	17	9	3	0	0	14.75	50	9	0	0	63	34	70	85	0	0	0	0	0	0	23.50	0	47	0	0	7.67	7	10	6	0	0
2016	29.45	36	40	53	25	11	15	41	27	10	21	0	0	12.50	38	8	1	3	53.33	43	51	66	0	0	0	0	0	0	29.33	1	42	0	45	9.33	6	3	19	0	0
2017	29.17	30	32	49	19	18	24	33	28	19	21	38	0	20.50	39	20	9	14	41.50	35	46	51	39	57	21	0	0	0	33.33	0	44	17	39	7.33	6	7	9	3	3
2018	18.83	28	16	35	11	4	6	31	13	2	12	25	0	11.75	37	3	3	4	36	30	55	51	20	45	5	46	0	0	28	0	34	15	35	3.67	3	3	5	2	2
2019	11.17	16	8	23	9	8	10	10	8	2	0	15	0	4.75	16	1	1	1	25.71	13	28	37	21	43	10	28	0	0	18.67	0	14	11	31	4.33	5	7	1	2	2
2020	13.54	21	14	25	9	20	17	13	10	2	5	14	9	6.75	21	2	2	2	25.78	17	27	33	22	36	19	21	25	32	16.33	0	13	12	24	7.67	7	9	7	2	2

Export Table Data

Figure ZR08-2: Average annual concentration of PM10 (annual limit value is 40 µg/m3)

Sources:

National automatic measurement air quality network database, Slovenian Environment Agency, database of complementary automated measurement networks, 2020 (Thermal power plant Šoštanj, TE-TO Thermal power plant Ljubljana, Environment Information System Anhovo, Municipality of Ljubljana, Municipality of Celje, Municipality of Maribor, Municipality of Miklavž in the Drava field, Municipality of Ruše, Municipality of Ptuj and Municipality of Grosuplje) (12.03.2021)

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	Urban background[µg/m3]	- Ljubljana Bežigrad[µg/m3]	- Ljubljana BF[µg/m3]	- Celje[µg/m3]	- Koper[µg/m3]	- Nova Gorica[µg/m3]	- Novo mesto[µg/m3]	- Kranj[µg/m3]	- Hrastnik[µg/m3]	- EIS Celje[µg/m3]	- Velenje[µg/m3]	- Maribor Vrbanski[µg/m3]	- Ptuj[µg/m3]	- MB Tezno[µg/m3]	Suburban background[µg/m3]	- Trbovlje[µg/m3]	- Pesje[µg/m3]	- Škale[µg/m3]	- Šoštanj[µg/m3]	Urban-traffic type[µg/m3]	- Maribor center[µg/m3]	- Zagorje[µg/m3]	- Ljubljana Center[µg/m3]	- Ljubljana Gospodarsko[µg/m3]	- Celje Mariborska[µg/m3]	- Nova Gorica Grčna[µg/m3]	- Murska Sobota Cankarjeva[µg/m3]	- Spuhlja[µg/m3]	- Grosuplje[µg/m3]	Rural/Agricultural type[µg/m3]	- Prapretno[µg/m3]	- Murska Sobota-Rakičan[µg/m3]	- Ruše[µg/m3]	- Miklavž[µg/m3]	Rural/Industrial type[µg/m3]	- Morsko[µg/m3]	- Gorenje Polje[µg/m3]	- Žerjav[µg/m3]	Rural type/natural background[µg/m3]	- Iskrba[µg/m3]	annual limit value[µg/m3]
2005	39.75	37	0	43	0	34	0	0	0	45	0	0	0	0	35	55	27	23	0	47.50	43	52	0	0	0	0	0	0	0	32.50	28	37	0	0		0	0	0	16	16	40
2006	32.75	33	0	35	31	32	0	0	0	0	0	0	0	0	31.33	40	28	26	0	44.50	43	46	0	0	0	0	0	0	0	34	34	34	0	0		0	0	0	16	16	40
2007	31.50	32	0	32	29	33	0	0	0	0	0	0	0	0	27.33	37	21	24	0	40.50	40	41	0	0	0	0	0	0	0	31.50	33	30	0	0	23.50	23	24	0	15	15	40
2008	29	30	0	30	25	31	0	0	0	0	0	0	0	0	26.67	38	20	22	0	40.67	34	44	44	0	0	0	0	0	0	29.50	29	30	0	0	24	22	26	0	16	16	40
2009	27.40	29	26	31	23	28	0	0	0	0	0	0	0	0	26.33	33	22	24	0	38	30	36	48	0	0	0	0	0	0	30	31	29	0	0	21.50	20	23	0	16	16	40
2010	29.13	30	27	32	25	29	31	32	27	0	0	0	0	0	26.33	34	22	23	0	37	33	36	42	0	0	0	0	0	0	29.50	29	30	0	0	21.67	19	20	26	14	14	40
2011	29.89	32	30	35	27	27	32	30	30	0	0	26	0	0	26.67	35	22	23	0	38.33	34	37	44	0	0	0	0	0	0	33.50	34	33	0	0	26	21	23	34	17	17	40
2012	25.60	26	27	31	24	24	28	26	24	0	22	24	0	0	24.67	32	20	22	0	35.67	30	32	45	0	0	0	0	0	0	28.50	28	29	0	0	23.33	20	21	29	15	15	40
2013	23.91	24	26	29	20	22	27	25	23	26	21	20	0	0	20.50	30	23	17	12	33.33	30	29	41	0	0	0	0	0	0	25	22	28	0	0	20	16	18	26	13	13	40
2014	22.35	22.70	22.20	27.67	19.08	21.01	22.53	21.94	20.76	29	20	19	0	0	19.89	26.57	23	17	13	30.84	26.52	28	38	0	0	0	0	0	0	22.03	19	25.05	0	0	13.33	8	11	21	11	11.37	40
2015	26.36	28	27	32	23	24	28	26	24	35	22	21	0	0	21.50	29	24	17	16	33.33	28	32	40	0	0	0	0	0	0	25	21	29	0	0	21	18	20	25	13	13	40
2016	23.64	24	27	32	19	21	26	23	22	27	19	20	0	0	21	26	23	16	19	32	27	29	40	0	0	0	0	0	0	23.67	18	26	0	27	18.67	16	17	23	11	11	40
2017	24.25	25	25	30	20	23	27	26	23	25	21	20	26	0	22.50	29	24	17	20	29.50	28	29	33	29	33	25	0	0	0	26.33	0	29	21	29	19.33	18	19	21	12	12	40
2018	23.17	27	21	28	18	20	26	22	22	29	19	21	25	0	21	27	19	17	21	29.14	28	32	35	24	31	24	30	0	0	25.33	0	26	22	28	18.33	15	17	23	14	14	40
2019	20.33	21	19	26	17	20	21	19	20	24	17	18	22	0	17.75	22	16	15	18	26.29	23	25	34	24	29	23	26	0	0	22.67	0	21	22	25	17.33	15	17	20	11	11	40
2020	19.85	22	19	22	20	20	20	19	19	23	17	17	19	21	17.50	21	15	16	18	24.89	22	24	29	23	26	23	24	25	28	20.33	0	21	18	22	18.67	15	18	23	10	10	40

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Figure ZR08-3: Average annual concentration of PM2,5 (annual limit value is 25 µg/m3)

Sources:

National automatic measurement air quality network database, Slovenian Environment Agency, 2020 (12.03.2021)

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	Urban background[µg/m3]	- LJ Bežigrad[µg/m3]	- LJ Biotehniška[µg/m3]	- MB Vrbanski plato[µg/m3]	Urban-traffic type[µg/m3]	- Maribor center[µg/m3]	Rural background[µg/m3]	- Iskrba[µg/m3]
2005	28	28	0	0	28	28	15	15
2006	29	29	0	0	31	31	13	13
2007	25	25	0	0	27	27	10	10
2008	24	24	0	0	23	23	11	11
2009	19	0	18	20	22	22	12	12
2010	22	0	22	22	24	24	12	12
2011	24	0	25	23	26	26	14	14
2012	19.50	0	21	18	21	21	13	13
2013	20	0	20	20	22	22	11	11
2014	17.36	0	17.70	17.01	19.20	19.20	9.33	9.33
2015	21	0	23	19	21	21	10	10
2016	21	0	23	19	21	21	9	9
2017	19	0	20	18	20	20	10	10
2018	16.67	19	0	17	0	0	11	11
2019	14	16	0	13	0	0	8	8
2020	14.25	16	0	12	0	0	7	7

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Figure ZR08-4: Average exposure indicator (AEI) for PM2.5(a three-calendaryear running annual mean concentration averaged over last three calendar year - exposure concentration obligation that need to be met by 2015 is 20 µg/m3)

Sources:

National automatic measurement air quality network database (DKMZ), Slovenian Environment Agency, 2020 (12.03.2021)

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