#HEADER#
PROJECT=CALNEX
PLATFORM=ATLANTIS
FILE_START_TIME=2010 05 15 03 12
FILE_STOP_TIME=2010 06 06 19 31
DATA_TYPE=TIMESERIES-1D
VERSION=0
SUBMIT_DATE=20-OCT-2010
SOURCE=Quinn, Patricia K/NOAA-PMEL/Phone: 206-526-6892 /Address: 7600 Sand Pt. Wy. NE,Seattle,WA 98115 /email: patricia.k.quinn@noaa.gov
#REMARKS#
Data Source Description= Aerosol Chemistry Data, Anions - collected with 2 stage impactors during CalNex 2010 
Time Description= irregular time interval
Other=
Below Detection Level Indicator = 0 
Version 0= Initial version, no comments
Aerosol Ion Chemistry Data
Contact persons: Tim Bates, tim.bates@noaa.gov; Trish Quinn, patricia.k.quinn@noaa.gov
Two-stage multi-jet cascade impactors (Berner et al., 1979) sampling air at 60% RH were 
used to determine the sub- and supermicrometer concentrations of Cl-, Br-, NO3-, SO4=, methanesulfonate 
(MSA-), oxalate (Ox-), Na+, NH4+, K+, Mg+2, and Ca+2. Sampling periods ranged from 2 to 13 hours. The RH of the 
sampled air stream was measured a few inches upstream from the impactor. The 50% aerodynamic 
cutoff diameters, D50,aero, were 1.1 and 10 um. Submicrometer refers to particles with Daero < 1.1 um 
at 60% RH and supermicrometer refers to particles with 1.1 um < Daero < 10 um at 60% RH.
The impaction stage at the inlet of the impactor was coated with silicone grease to prevent 
the bounce of larger particles onto the downstream stages. Tedlar films were used as the 
collection substrate in the impaction stage and a Millipore Fluoropore filter (1.0-um pore size) 
was used for the backup filter. Films were cleaned in an ultrasonic bath in 10% H2O2 for 30 min, 
rinsed in distilled, deionized water, and dried in an NH3- and SO2-free glove box. Filters and 
films were wetted with 1 mL of spectral grade methanol. An additional 5 mLs of distilled 
deionized water were added to the solution and the substrates were extracted by sonicating for 30 min. 
The extracts were analyzed by ion chromatography [Quinn et al., 2000]. All handling of the 
substrates was done in the glove box. Blank levels were determined by loading an impactor with 
substrates but not drawing any air through it.
Concentrations are reported as ug/m3 at STP (25C and 1 atm). 
Values below the detection limit are denoted with a -8888 in the .itc file and 0 in the .acf and .itx files, 
missing data are denoted with a -9999.
Berner et al., Sci. Total Environ., 13, 245 - 261, 1979. 
Quinn et al., J. Geophys. Res., 105, 6785 - 6805, 2000.
#TIME PARAMETERS#
year month day hour minute second
#PARAMETER#
Duration
minutes
*
0
59
-9999
628
#PARAMETER#
DayOfYear
DecimalDay
*
1
365.9999
-9999
627
#PARAMETER#
LAT
Deg
GPS
-90
90
-9999
500
#PARAMETER#
LONGT
Deg
GPS
-180
360
-9999
502
#PARAMETER#
subMSA
ug/m3
2-stage impactor -- ion chromatographic analysis
0
50
-9999
1956
#PARAMETER#
supMSA
ug/m3
2-stage impactor -- ion chromatographic analysis
0
50
-9999
1957
#PARAMETER#
subCl
ug/m3
2-stage impactor -- ion chromatographic analysis
0
50
-9999
1944
#PARAMETER#
supCl
ug/m3
2-stage impactor -- ion chromatographic analysis
0
50
-9999
1945
#PARAMETER#
subBr
ug/m3
2-stage impactor -- ion chromatographic analysis
0
50
-9999
1989
#PARAMETER#
supBr
ug/m3
2-stage impactor -- ion chromatographic analysis
0
50
-9999
1990
#PARAMETER#
subNO3
ug/m3
2-stage impactor -- ion chromatographic analysis
0
50
-9999
1947
#PARAMETER#
supNO3
ug/m3
2-stage impactor -- ion chromatographic analysis
0
50
-9999
1948
#PARAMETER#
subSO4
ug/m3
2-stage impactor -- ion chromatographic analysis
0
50
-9999
1950
#PARAMETER#
supSO4
ug/m3
2-stage impactor -- ion chromatographic analysis
0
50
-9999
1951
#PARAMETER#
subOxalate
ug/m3
2-stage impactor -- ion chromatographic analysis
0
50
-9999
1986
#PARAMETER#
supOxalate
ug/m3
2-stage impactor -- ion chromatographic analysis
0
50
-9999
1987
#DATA 2 HEADINGS#
Y	M	D	HR	Min	Sec	Dur	DayOfYear	LAT	LONGT	subMSA	supMSA	subCl	supCl	subBr	supBr	subNO3	supNO3	subSO4	supSO4	subOxalate	supOxlate
Y	M	D	HR	Min	Sec	Min	DecimalDay	Deg	Deg	ug/m3	ug/m3	ug/m3	ug/m3	ug/m3	ug/m3	ug/m3	ug/m3	ug/m3	ug/m3	ug/m3	ug/m3 
2010	5	15	3	12	0	645.0	135.35729	33.450108	-118.296065	0.195	0.033	0.012	1.286	0.000	0.000	0.117	2.834	3.563	0.579	0.058	0.050
2010	5	15	15	11	0	323.0	135.74479	33.799368	-118.465542	0.206	0.212	0.022	0.598	0.070	0.000	0.084	6.019	7.240	1.464	0.120	0.055
2010	5	16	3	19	0	640.0	136.36042	33.726942	-118.732062	0.314	0.069	0.015	2.556	0.000	0.000	0.144	2.793	3.662	1.112	0.091	0.073
2010	5	16	15	45	0	217.0	136.73160	33.648990	-118.499623	0.162	0.202	0.023	0.919	0.000	0.000	0.059	1.744	2.669	1.167	0.051	0.046
2010	5	16	20	39	0	273.0	136.95521	33.338203	-118.959630	0.482	0.277	0.022	0.980	0.000	0.000	0.042	2.077	3.421	1.124	0.167	0.095
2010	5	17	2	24	0	690.0	137.33958	33.989095	-118.852032	0.242	0.057	0.010	0.145	0.000	0.000	0.022	0.666	2.022	0.542	0.073	0.048
2010	5	17	14	56	0	297.0	137.72535	34.159187	-119.458130	0.388	0.248	0.255	1.533	0.000	0.002	0.050	1.929	2.978	0.741	0.038	0.054
2010	5	17	20	57	0	413.0	138.01632	34.074423	-119.208433	0.346	0.206	0.017	0.817	0.000	0.000	0.037	1.686	2.957	0.620	0.044	0.042
2010	5	18	4	58	0	543.0	138.39549	34.111972	-119.189960	0.328	0.134	0.021	0.343	0.000	0.000	0.045	0.706	3.105	0.328	0.020	0.013
2010	5	18	21	40	0	232.0	138.98333	33.959053	-118.656330	0.202	0.169	0.026	0.212	0.000	0.000	0.015	0.340	0.811	0.316	0.007	0.004
2010	5	19	2	27	0	694.0	139.34306	33.700418	-118.217650	0.109	0.000	0.014	0.888	0.000	0.000	0.036	0.606	1.060	0.198	0.021	0.011
2010	5	19	15	2	0	640.0	139.84861	33.709888	-118.217772	0.146	0.046	0.015	0.102	0.000	0.002	0.035	0.477	2.962	0.277	0.086	0.011
2010	5	20	2	57	0	660.0	140.35208	33.709745	-118.217473	0.149	0.043	0.015	1.849	0.002	0.002	0.065	1.889	1.751	0.402	0.055	0.026
2010	5	20	15	40	0	215.0	140.72743	33.760612	-118.219222	0.337	0.125	0.073	2.652	0.000	0.036	0.200	4.390	3.018	0.880	0.052	0.037
2010	5	20	20	33	0	271.0	140.95035	33.581460	-117.886783	0.286	0.128	0.110	4.849	0.000	0.004	0.248	0.047	1.740	0.988	0.035	0.040
2010	5	21	2	6	0	711.0	141.33437	33.722092	-118.885863	0.175	0.135	0.533	14.268	0.000	0.032	0.725	4.611	2.145	2.387	0.045	0.036
2010	5	21	15	40	0	256.0	141.74167	34.017892	-118.583425	0.237	0.101	0.133	6.613	0.000	0.040	0.371	5.815	2.469	1.334	0.036	0.040
2010	5	21	20	57	0	263.0	141.96424	33.650012	-118.566800	0.272	0.201	0.268	9.262	0.000	0.005	0.426	4.677	1.068	1.633	0.032	0.042
2010	5	22	19	3	0	172.0	142.85347	33.748043	-118.276010	0.082	0.013	0.204	3.564	0.000	0.000	0.229	2.289	0.909	0.770	0.020	0.015
2010	5	23	20	26	0	290.0	143.95208	33.568442	-118.183468	0.031	0.011	0.964	8.645	0.004	0.019	0.095	0.394	0.559	0.884	0.004	0.005
2010	5	24	2	15	0	704.0	144.33819	33.932655	-118.461647	0.043	0.018	0.220	13.044	0.001	0.013	0.199	1.115	0.450	1.289	0.007	0.009
2010	5	24	14	49	0	131.0	144.66285	33.946078	-118.465070	0.008	0.000	0.109	5.539	0.001	0.006	0.250	1.595	0.567	0.889	0.009	0.012
2010	5	24	21	49	0	966.0	145.24444	33.881940	-118.538220	0.054	0.012	0.070	4.772	0.001	0.003	0.077	1.085	0.581	0.682	0.008	0.012
2010	5	26	2	3	0	712.0	146.33264	33.550065	-118.212652	0.046	0.003	0.017	0.494	0.036	0.001	0.027	0.674	1.337	0.233	0.007	0.006
2010	5	26	17	2	0	173.0	146.76979	33.764228	-118.274783	0.037	0.005	0.018	0.187	0.000	0.000	0.034	0.464	2.330	0.204	0.015	0.008
2010	5	26	21	7	0	232.0	146.96042	33.764232	-118.274752	0.020	0.004	0.012	0.060	0.000	0.000	0.023	0.288	1.408	0.198	0.013	0.007
2010	5	27	2	0	0	721.0	147.33368	33.764283	-118.275403	0.044	0.006	0.007	0.237	0.000	0.004	0.000	0.001	1.608	0.207	0.015	0.009
2010	5	28	2	18	0	652.0	148.32222	33.686640	-118.086640	0.047	0.015	0.023	1.697	0.008	0.002	0.045	0.556	0.818	0.291	0.005	0.013
2010	5	29	0	0	0	844.0	149.29306	33.785722	-118.453710	0.048	0.014	0.084	6.839	0.003	0.028	0.184	1.730	0.649	0.790	0.009	0.015
2010	5	29	15	6	0	239.0	149.71215	33.994044	-118.627366	0.068	0.001	0.025	4.080	0.000	0.014	0.237	5.440	0.864	0.802	0.016	0.017
2010	5	29	20	8	0	298.0	149.94236	33.996332	-118.520485	0.086	0.004	0.009	0.895	0.002	0.005	0.133	5.176	1.367	0.561	0.031	0.027
2010	5	30	1	55	0	665.0	150.31076	33.500213	-118.619480	0.092	0.024	0.027	3.772	0.002	0.006	0.154	2.723	1.040	0.529	0.029	0.034
2010	5	30	14	49	0	250.0	150.70417	33.726690	-118.760187	0.127	0.018	0.035	1.617	0.000	0.025	0.131	4.160	2.350	0.721	0.023	0.031
2010	5	31	5	50	0	484.0	151.41111	34.252203	-119.358233	0.152	0.049	0.051	6.018	0.013	0.006	0.225	2.575	1.657	0.860	0.027	0.041
2010	5	31	14	43	0	261.0	151.70382	34.279573	-119.372307	0.150	0.035	0.033	1.695	0.003	0.002	0.117	4.515	3.139	0.884	0.030	0.044
2010	5	31	20	8	0	174.0	151.89931	34.379123	-119.845908	0.181	0.045	0.006	1.564	0.000	0.000	0.099	4.939	3.461	1.192	0.046	0.055
2010	6	1	3	20	0	639.0	152.36076	34.728765	-121.070845	0.026	0.003	0.026	1.122	0.001	0.016	0.044	0.118	0.482	0.200	0.002	0.001
2010	6	1	19	54	0	303.0	152.93437	36.643548	-122.012337	0.106	0.022	0.064	4.030	0.415	0.010	0.079	0.731	1.164	0.574	0.006	0.006
2010	6	2	2	0	0	712.0	153.33056	36.892881	-122.004646	0.099	0.023	0.093	4.517	0.000	0.010	0.129	1.097	0.990	0.718	0.005	0.000
2010	6	2	15	0	0	452.0	153.78194	37.002661	-122.318239	0.066	0.005	0.028	0.099	0.000	0.003	0.029	0.060	0.381	0.064	0.004	0.002
2010	6	3	3	15	0	641.0	154.35799	38.034002	-122.154617	0.017	0.004	0.000	0.035	0.000	0.000	0.009	0.034	0.457	0.058	0.000	0.001
2010	6	3	15	0	0	422.0	154.77153	38.182057	-121.664592	0.045	0.033	0.010	0.000	0.000	0.000	0.021	0.015	0.269	0.025	0.000	0.000
2010	6	3	22	57	0	892.0	155.26597	38.562403	-121.551458	0.019	0.009	0.003	0.006	0.000	0.000	0.022	0.032	0.796	0.097	0.006	0.001
2010	6	4	14	56	0	302.0	155.72708	38.562433	-121.551335	0.005	0.000	0.000	0.004	0.001	0.000	0.015	0.042	1.557	0.068	0.000	0.000
2010	6	4	22	41	0	319.0	156.05590	38.220518	-121.672582	0.050	0.000	0.000	0.000	0.011	0.022	0.020	0.099	0.745	0.085	0.008	0.001
2010	6	5	4	53	0	644.0	156.42708	38.562688	-121.551575	0.032	0.001	0.000	0.000	0.006	0.022	0.016	0.018	0.340	0.046	0.000	0.000
2010	6	5	16	24	0	506.0	156.85903	38.406097	-121.614838	0.024	0.000	0.005	0.023	0.000	0.000	0.026	0.035	0.389	0.038	0.004	0.001
2010	6	6	1	52	0	725.0	157.32951	38.051017	-122.116720	0.017	0.000	0.005	0.116	0.002	0.000	0.011	0.065	0.790	0.075	0.001	0.000
2010	6	6	15	3	0	268.0	157.72014	37.979953	-122.426313	0.011	0.000	0.000	0.102	0.000	0.000	0.011	0.014	0.552	0.031	0.002	0.000