Population exposure to airborne pollen/allergens

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Population exposure to allergens has been increasing not only in Slovenia but also worldwide. This phenomenon is influenced by the increase in average air temperature. Higher average air temperature results in a longer growing season and thus the longer presence of allergenic pollen in the air. Particularly noteworthy is to mention the pollen of alder, birch, grasses and ambrosia. The severity of exposure to the allergen pollen of alder, birch, grasses and ambrosia shows large annual fluctuations, with distinct differences between the continental Slovenia and the littoral area. Significantly increased are the air loads of birch (betula) pollen.

Charts

Figure ZD22-1: Annual index of Betula, Poaceae and Ambrosia pollen, for continent and Primorje, Slovenia, 2002-2018

Sources:

Collection of Two Hour Pollen Concentrations, National Laboratory of Health, Environment and Food (2018)

Chart note:

Annual pollen index is the amount of pollen registered in one year.

Show data


	Ambrosia (Primorje)[integral]	Ambrosia (continent)[integral]	Poaceae (Primorje)[integral]	Poaceae (continent)[integral]	Betula (Primorje)[integral]	Betula (continent)[integral]
2002	649	1093	1115	2413	24	1378
2003	523	1033	1818	3822	317	3457
2004	413	437	1567	2650	167	2366
2005	681	669	2014	2750	91	1823
2006	344	696	2959	2617	222	4190
2007	108	355	1635	3310	309	2103
2008	374	1001	1755	2704	309	2644
2009	47	1005	2181	3079	116	2311
2010	302	1229	2820	3725	465	7107
2011	556	887		3758		3552
2012	620	815	1556	2440	647	8661
2013	310	813	2509	4579	249	5458
2014	344	702	2567	3421	508	4422
2015	442	829	3988	5070	182	4271
2016	872	842	2269	3193	436	6795
2017	223	809	1984	2927	390	4087
2018	1275	1046	1219	3745	181	4070

Export Table Data

Figure ZD22-2: Length of the grass pollen season in relation to the expression of pollen-induced hay fever, Slovenia, 2004-2018 (number of days)

Sources:

National Laboratory of Health, Environment and Food (2018)

Show data


	Izola[number of days]	Maribor[number of days]	Ljubljana[number of days]
2004	141	129	102
2005	147	69	96
2006	158	132	84
2007	104	102	111
2008	153	136	120
2009	162	126	144
2010	161	130	136
2011		141	133
2012	153	128	141
2013	164	139	110
2014	163	136	136
2015	168	142	141
2016	159	155	152
2017	106	136	108
2018	168	122	114

Export Table Data

Figure ZD22-3: Grass pollen calendar for Ljubljana, Maribor and Izola, 2004-2018

Sources:

National Laboratory of Health, Environment and Food (2018)

Show data

Figure ZD22-4: The start day of the birch pollen season according to the onset of hay fever symptoms, 2004-2018

Sources:

National Laboratory of Health, Environment and Food (2018)

Show data


	Izola[the serial number of the day of the year]	Maribor[the serial number of the day of the year]	Ljubljana[the serial number of the day of the year]
2004		93	99
2005		111	95
2006		93	99
2007	101	91	92
2008	91	76	91
2009		93	95
2010	106	88	96
2011		88	90
2012	82	83	82
2013	105	105	104
2014	84	91	76
2015		97	98
2016	93	90	90
2017	89	82	79
2018	104	97	96

Export Table Data

Figure ZD22-5: Number of days with the pollen load of ragweed equal to or higher than 20 grains/m3, 2004-2018

Sources:

National Laboratory of Health, Environment and Food (2018)

Show data


	Izola[number of days]	Maribor[number of days]	Ljubljana[number of days]
2004	6	8	6
2005	7	12	9
2006	2	22	12
2007	1	8	3
2008	4	13	16
2009	5	19	17
2010	5	13	11
2011		20	14
2012	10	16	16
2013	4	11	8
2014	5	12	9
2015	8	16	3
2016	13	17	13
2017	2	18	5
2018	11	22	13

Export Table Data

Figure ZD22-6: Length of cypress and olive tree pollen season in relation to the expression of pollen-induced hay-fever, 2004-2018

Sources:

National Laboratory of Health, Environment and Food (2018)

Show data


	olive trees[number of days]	cypresses[number of days]
2004	7	56
2005	12	60
2006	34	80
2007	12	66
2008	15	83
2009	10	61
2010	34	69
2011
2012	7	73
2013	21	69
2014	11	67
2015	25	87
2016	18	68
2017	16	59
2018		61

Export Table Data

Goals

Reducing population exposure to allergenic pollen and pollution monitoring;
safeguarding citizens from environment-related pressures and risks to health and well-being;
improving the knowledge and evidence base for environment policy;
adaptation to climate change and raising awareness.

Methodology

Last modified: 26.11.2018

Author(s): Andreja Kofol Seliger, Anja Simčič; National Laboratory of Health, Environment and Food; Tanja Cegnar; Slovenian Environment Agency

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[ZD22] Population exposure to airborne pollen/allergens

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