Impacts of transport on air quality in urban areas

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This indicator shows the impact of transport on air quality in urban areas, expressed as air concentration of nitrogen dioxide (NO₂) and particulate matter (PM₁₀) in the period 2002–2019 for Slovenia and in the period 2002–2017 for Europe. The calculation is based on the comparison of average annual and average maximum annual values of pollutants measured at monitoring locations that are exposed to a direct (city traffic stations) and indirect (city background stations) burden of traffic. The indicator also shows the number of times that limit values for PM₁₀ particulates were exceeded in the period 2005–2019 in Slovenia.

Charts

Figure PR07-1: NO2 mean and maximum values of annual averages for traffic and urban background stations in Slovenia

Sources:

Database of automatic readings from the national network for monitoring air quality (DMKZ), Hydrology and State of the Environment office, Slovenian Environment Agency, 2019 (22. 04. 2021)

Show data


	Maribor (DMKZ)[µg/m3]	Ljubljana center (OMS Ljubljana)[µg/m3]	Celje (EIS Celje)[µg/m3]	Zagorje[µg/m3]	urban station - mean[µg/m3]	urban station - maximum[µg/m3]	Ljubljana Bežigrad (DMKZ)[µg/m3]	Celje (DMKZ)[µg/m3]	Nova Gorica[µg/m3]	background station - mean[µg/m3]	background station - maximum[µg/m3]	limit value[µg/m3]
2002	36	50	30	0	39	50	29	24	27	26.67	29	40
2003	37	59	22	0	39	59	32	27	27	28.67	32	40
2004	31	59	36	0	42	59	29	24	25	26	29	40
2005	33	59	40	0	44	59	27	26	24	25.67	27	40
2006	39	70	67	0	59	70	29	28	24	27	29	40
2007	37	66	29	0	44	66	28	23	25	25.33	28	40
2008	34	71	0	0	53	71	29	21	30	26.67	29	40
2009	32	55	0	0	44	55	31	22	28	27	31	40
2010	34	63	0	0	46	63	35	26	29	30	35	40
2011	34	55	0	0	45	55	31	25	28	28	31	40
2012	33	52	0	0	43	52	22	27	26	25	27	40
2013	32	43	20	23	29.50	43	29	26	25	26.67	29	40
2014	30	40	23	20	28.25	40	26	28	19	24.33	28	40
2015	31	36	23	25	28.75	36	30	29	22	27	30	40
2016	27	32	16	24	24.75	32	29	22	24	25	29	40
2017	27	50	22	28	31.75	50	30	28	30	29.33	30	40
2018	22	48	17	20	26.75	48	26	26	25	25.67	26	40
2019	25	45	14	20	19.67	45	25	25	26	25.33	26	40

Export Table Data

Figure PR07-2: PM10 mean and maximum values of annual averages for traffic and urban background stations in Slovenia

Sources:

Database of automatic readings from the national network for monitoring air quality (DMKZ), Hydrology and State of the Environment office, Slovenian Environment Agency, 2019 (22. 04. 2021)

Show data


	Maribor (DMKZ)[µg/m3]	Celje (EIS Celje)[µg/m3]	Ljubljana center (OMS Ljubljana)[µg/m3]	Zagorje (DMKZ)[µg/m3]	Ljubljana Gospodarsko (DMKZ)[µg/m3]	Celje Mariborska (DMKZ)[µg/m3]	Nova Gorica Grčna (DMKZ)[µg/m3]	urban trafic station - mean[µg/m3]	urban trafic station - maximum[µg/m3]	Ljubljana Bežigrad (DMKZ)[µg/m3]	Celje (DMKZ)[µg/m3]	Ljubljana- Biotehniška fakulteta[µg/m3]	Kranj[µg/m3]	Novo mesto[µg/m3]	Hrastnik[µg/m3]	Nova Gorica[µg/m3]	Koper[µg/m3]	Velenje[µg/m3]	Maribor Vrbanski[µg/m3]	Ptuj[µg/m3]	urban background station - mean[µg/m3]	urban background station - maximum[µg/m3]	limit value[µg/m3]
2001	48	0	0	0	0	0	0	48	48	43	45	0	0	0	0	0	0	0	0	0	46	50	40
2002	50	0	0	47	0	0	0	48.50	50	42	46	0	0	0	0	39	0	0	0	0	43.50	47	40
2003	58	51	0	51	0	0	0	53.33	58	46	53	0	0	0	0	37	0	0	0	0	47	53	40
2004	48	40	0	44	0	0	0	44	48	41	41	0	0	0	0	35	0	0	0	0	39.25	41	40
2005	43	45	0	52	0	0	0	46.67	52	37	43	0	0	0	0	34	0	0	0	0	42.25	55	40
2006	43	0	0	46	0	0	0	44.50	46	33	35	0	0	0	0	32	31	0	0	0	34.20	40	40
2007	40	0	0	41	0	0	0	40.50	41	32	32	0	0	0	0	33	29	0	0	0	32.60	37	40
2008	34	0	44	44	0	0	0	40.67	44	30	30	0	0	0	0	31	25	0	0	0	30.80	38	40
2009	30	0	48	36	0	0	0	38	48	29	31	26	0	0	0	28	23	0	0	0	28.33	33	40
2010	33	0	42	36	0	0	0	37	42	30	32	27	32	31	27	29	25	0	0	0	29.67	34	40
2011	34	0	44	37	0	0	0	38.33	44	32	35	30	30	32	30	27	27	0	26	0	30.89	35	40
2012	30	0	45	32	0	0	0	35.67	45	26	31	27	26	28	24	24	24	22	24	0	26.89	32	40
2013	30	26	41	29	0	0	0	31.50	41	24	29	26	25	27	23	22	20	21	20	0	25.11	30	40
2014	26.52	29	38	28	0	0	0	30.38	38	22.70	27.67	22.20	21.94	22.53	20.76	21.01	19.08	20	19	0	22.72	27.67	40
2015	28	35	40	32	0	0	0	33.75	40	28	32	27	26	28	24	24	23	22	21	0	26.78	32	40
2016	27	27	40	29	0	0	0	30.75	40	24	32	27	23	26	22	21	19	19	20	0	24.44	32	40
2017	28	25	33	29	29	33	25	28.86	33	25	30	25	26	27	23	23	20	21	20	26	24.58	29	40
2018	28	29	35	32	24	31	24	29	35	27	28	21	22	26	22	20	18	19	21	25	23	28	40
2019	23	24	34	25	24	29	23	26	34	21	26	19	19	21	20	20	17	17	18	22	20.17	26	40

Export Table Data

Figure PR07-3: Number of exceedances of the daily limit value of particulate matter (50 ug/m3) for traffic and urban background stations in Slovenia

Sources:

Database of automatic readings from the national network for monitoring air quality (DMKZ). Hydrology and State of the Environment office, Slovenian Environment Agency, 2019 (22. 04. 2021)

Show data


	Maribor (DMKZ)[number]	Ljubljana center (OMS Ljubljana)[number]	Celje (EIS Celje)[number]	Celje (DMKZ)[number]	Trbovlje[number]	Ljubljana Bežigrad (DMKZ)[number]	Ljubljana- Biotehniška fakulteta[number]	Kranj[number]	Novo mesto[number]	Zagorje[number]	Hrastnik[number]	Nova Gorica[number]	Koper[number]	Velenje[number]	Maribor Vrbanski[number]	Ptuj[number]	Ljubljana Gospodarsko[number]	Celje Mariborska[number]	Nova Gorica Grčna[number]
2005	101	0	89	97	157	70	0	0	0	143	0	37	0	0	0	0	0	0	0
2006	108	0	92	59	86	47	0	0	0	106	0	47	40	0	0	0	0	0	0
2007	91	0	0	48	81	46	0	0	0	99	0	40	19	0	0	0	0	0	0
2008	54	101	0	37	72	36	0	0	0	109	0	33	11	0	0	0	0	0	0
2009	35	112	0	42	48	30	25	0	0	56	0	24	2	0	0	0	0	0	0
2010	47	74	0	58	64	43	32	37	60	68	30	25	15	0	0	0	0	0	0
2011	64	94	0	73	68	63	51	55	69	75	51	28	21	0	25	0	0	0	0
2012	34	107	0	55	65	27	21	27	45	62	17	19	23	11	8	0	0	0	0
2013	36	74	35	51	50	22	24	28	49	48	15	12	10	8	7	0	0	0	0
2014	25	55	41	41	33	19	12	12	22	38	10	19	16	15	10	0	0	0	0
2015	34	85	76	70	50	43	35	17	40	70	22	24	28	9	3	0	0	0	0
2016	43	66	45	53	38	36	40	27	41	51	25	15	11	10	21	0	0	0	0
2017	35	51	39	49	39	30	32	28	33	46	19	24	18	19	21	38	39	57	21
2018	30	51	43	35	37	28	16	13	31	55	11	6	4	2	12	25	20	45	5
2019	13	37	25	23	16	16	8	8	10	28	9	10	8	2	0	15	21	43	10

Export Table Data

Figure PR07-4: NO2 mean values of annual averages for traffic stations in Europe, 2017

Sources:

EEA, Exceedances of air quality limit values due to traffic, 2019 (4. 06. 2021)

Figure PR07-5: NO2 mean values of annual averages for urban background stations in Europe, 2017

Sources:

EEA, Exceedances of air quality limit values due to traffic, 2019 (4. 06. 2021)

Figure PR07-6: PM10 mean values of daily averages for traffic stations in Europe, 2017

Sources:

EEA, Exceedances of air quality limit values due to traffic, 2019 (4. 06. 2021)

Figure PR07-7: PM10 mean values of daily averages for urban backround stations in Europe, 2017

Sources:

EEA, Exceedances of air quality limit values due to traffic, 2019 (4. 06. 2021)

Goals

To comply with the following limit values for ambient air concentrations of nitrogen oxides in order to protect human health and vegetation:

hourly NO₂ concentration limit value for human health protection: 200 µg/m³ (allowed exceedance: 18 times within a calendar year);
annual NO₂ concentration limit value for human health protection (to be met by 1 January 2010): 40 µg/m³;
annual critical value for plant protection: 30 µg NO_x/m³. Critical value for NO₂ measured in three consecutive hours at places that are representative for air quality in areas of at least 100 km², in the entire area or in agglomerations must not exceed 400 µg/m³.

Limit values for ambient air concentration of PM10 particulates for protection of human health:

daily PM10 concentration limit value: 50 µg/m3 (allowed exceedance: 35 times within a calendar year);
annual PM10 concentration limit value: 40 µg/m3.

Methodology

Last modified: 04.06.2021

Author(s): Aljaž Plevnik, Urban planning Institute of the RS and Nataša Kovač, Slovenian Environment Agency

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[PR07] Impacts of transport on air quality in urban areas

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