Nanoaerosols Including Radon Decay Products in Outdoor and Indoor Air at a Suburban Site

Table 1

Minimum and maximum values, geometric means, and geometric standard deviations (except for 𝑅_𝑠 for which arithmetic mean and arithmetic standard deviation are given) for the total number concentration of general aerosol (𝐶^𝑁_gen (tot)), geometric mean of number size distribution of general aerosol (𝑑_GM), number fractions of particles smaller than 10 nm (𝑥_gen(<10)) and smaller than 20 nm (𝑥_gen(<20)), equilibrium equivalent concentration of radon short-lived decay products (𝐶^𝐴_RnDP), activity fraction of the unattached radon short-lived decay products (𝑓^un), barometric pressure (P), air temperature (T), air relative humidity (𝐻_rel), wind speed (𝑣_𝑤), solar radiation (𝑅_𝑠), and concentrations of aerosol particles smaller than 10 μm (𝐶_PM10), SO₂ (𝐶_SO2), NO_x (𝐶_NO𝑥), and O₃ (𝐶_O3) for the entire period of measurements outdoors in May (3 May–6 June) and October (7–11 October, 17–21 October, and 24–26 October).

Parameter	May				October
	min	max	GM	GSD	min	max	GM	GSD
𝐶^Ngen(tot)/cm^−3	1420	75650	6830	1.69	970	85930	6940	1.93
𝑑GM/nm	18	124	53	1.42	15	133	59	1.43
𝑥gen (<10)					0.03	0.37	0.02	3.08
𝑥gen (<20)	0.03	0.78	0.12	2.47	0.03	0.79	0.09	2.75
𝐶^ARnDP/Bq m^−3					2	18	6	2.05
𝑓^un					0.01	0.75	0.09	2.38
P/hPa	963	988	977	1.01	970	993	981	1.01
T/°C	5	28	15	1.31	1	16	8	1.56
𝐻rel/%	21	99	65	1.43	42	99	82	1.19
𝑣w/m s^−1	0.1	7	1.2	3.16	0.1	5	0.8	2.33
𝑅𝑠/W m^−2	1	1085	198*	266**	1	793	78*	145**
𝐶PM10/μg m^−3	0.03	52	13	3.22	0.03	113	23	3.26
𝐶SO2/μg m^−3	0.1	8	0.7	3.40	0.1	14	0.6	3.87
𝐶NO𝑥/μg m^−3	4	129	24	1.97	4	209	38	2.14
𝐶O3/μg m^−3	1	159	42	2.60	1	92	14	3.22

*Arithmetic mean.
**Arithmetic standard deviation.