Atmospheric deposition sampling across an urban gradient, using passive resin collectors
Author(s):
- Daniel Gonzales, Fulton School of Engineering, Arizona State University
- Jonathan Allen, Fulton School of Engineering, Arizona State University
Abstract:
One of the "Grand Challenges" for environmental biology is to increase understanding of human perturbations of biogeochemical cycles (NRC 2001). One route for these perturbations to be affected is through the transfer of pollutants from the atmosphere to the biosphere. As part of the Ecosystem Response to Material Deposition from the Urban Atmosphere (N. B. Grimm, PD) study, CAP-LTER scientists are investigating the fate of anthropogenic organic C (oC) and inorganic nitrogen (iN) deposition and their effects on ecosystem functioning in unmanaged deserts within and near cities. We hypothesize that biogeochemical cycling will be qualitatively different in urban environments due to large inputs of biologically available C and N from the atmosphere.
As part of this project, we will deploy filter banks equipped with size-selective aerosol inlets to collect particulate oC and iN compounds in the urban atmosphere. In order to estimate fluxes of these nutrients from the concentration measurements, we plan to deploy weather stations and to analyze these data to estimate deposition rates.
Keywords:
Contact:
Information Manager,Global Institute for Sustainability,Arizona State University,POB 875402,Tempe
caplter.data@asu.edu
Methods used in producing this dataset: Show
Data Files (7) :
Tabular: 120_filter_c_concentration_1.csv
Description: carbon concentration of trapped particles
Column | Description | Type | Units |
---|---|---|---|
ID | automatically generated sequential ID
number |
integer | |
site_id | site ID as used in sites table |
string | |
sample_date | date sample was taken |
datetime | Format: MM/DD/YYYY |
sample_id | sample ID used by researcher |
string | |
pm_fine | C concentration in fine particles |
float | microgramPerMeterCubed |
pm_coarse | C concentration in coarse particles |
float | microgramPerMeterCubed |
Tabular: 120_filter_c_flux_1.csv
Description: flux of carbon
Column | Description | Type | Units |
---|---|---|---|
ID | automatically generated sequential ID
number |
integer | |
site_id | site ID as used in sites table |
string | |
sample_date | date sampel was taken |
datetime | Format: MM/DD/YYYY |
sample_id | sample ID used by researcher |
string | |
pm_fine | C flux in fine particle |
float | kilogramPerHectarePerYear |
pm_coarse | C flux in coarse particle |
float | kilogramPerHectarePerYear |
Tabular: 120_filter_n_concentration_1.csv
Description: Nitrogen concentration in trapped particles
Column | Description | Type | Units |
---|---|---|---|
ID | automatically generated sequential ID
number |
integer | |
site_id | site ID as used in sites table |
string | |
sample_date | date sample was taken |
datetime | Format: MM/DD/YYYY |
sample_id | sample ID used by researcher |
string | |
hno_3 | HNO3 conentration |
float | microgramPerMeterCubed |
nh_4 | NH4 conentration |
float | microgramPerMeterCubed |
no3_fine | NO3 concentration in fine particles |
float | microgramPerMeterCubed |
nh4_fine | NH4 concentration in fine particles |
float | microgramPerMeterCubed |
no3_coarse | NO3 concentration in coarse particles |
float | microgramPerMeterCubed |
nh4_coarse | NH4 concentration in coarse particles |
float | microgramPerMeterCubed |
Tabular: 120_filter_n_flux_1.csv
Description: Nitrogen flux
Column | Description | Type | Units |
---|---|---|---|
ID | automatically generated sequential ID
number |
integer | |
site_id | site ID as used in sites table |
string | |
sample_date | date sample was taken |
datetime | Format: MM/DD/YYYY |
sample_id | sample ID used by researcher |
string | |
hno_3 | HNO3 flux |
float | kilogramPerHectarePerYear |
nh_4 | NH4 flux |
float | kilogramPerHectarePerYear |
no3_fine | NO3 flux in fine particles |
float | kilogramPerHectarePerYear |
nh4_fine | NH4 flux in fine particles |
float | kilogramPerHectarePerYear |
no3_coarse | NO3 flux in coarse particles |
float | kilogramPerHectarePerYear |
nh4_coarse | NH4 flux in coarse particles |
float | kilogramPerHectarePerYear |
Tabular: 120_filter_n_pm_dep_velocity_1.csv
Description: Nitrogen particle matter deposition velocity
Column | Description | Type | Units |
---|---|---|---|
ID | automatically generated sequential ID
number |
integer | |
site_id | site ID as used in sites table |
string | |
sample_date | date sample was taken |
datetime | Format: MM/DD/YYYY |
sample_id | sampel ID used by researcher |
string | |
hno_3 | HNO3 depostion velocity |
float | metersPerSecond |
nh_4 | NH4 depostion velocity |
float | metersPerSecond |
pm_fine | fine particle depostion velocity |
float | metersPerSecond |
pm_coarse | coarse particle depostion velocity |
float | metersPerSecond |
Tabular: 120_filter_c_pm_dep_velocity_1.csv
Description: Carbon particle matter deposition velocity
Column | Description | Type | Units |
---|---|---|---|
ID | automatically generated sequential ID
number |
integer | |
site_id | site ID as used in sites table |
string | |
sample_date | date sample was taken |
datetime | Format: MM/DD/YYYY |
sample_id | sample ID used by researcher |
string | |
pm_fine | fine particle depostion velocity |
float | metersPerSecond |
pm_coarse | coarse particle depostion velocity |
float | metersPerSecond |
Tabular: 120_sites_1.csv
Description: site descriptions
Column | Description | Type | Units |
---|---|---|---|
site_id | Unique site abbreviations |
string | |
site_name | Name of the site |
string | |
plots | Names of the plots within each site |
string | |
region | Region of the city and surrounding area the site is
located |
string | |
utm_e | UTM coordinates - Eastings |
float | meter |
utm_n | UTM coordinates - Northings |
float | meter |