South DeKalb Atlanta, Georgia


 

Instrument Mentors

Nga Lee Ng

Georgia Institute of Technology

PI, Steering Committee

South DeKalb
David Pando

Georgia Institute of Technology

Graduate Student

South DeKalb
Ruizhe (Evan) Liu

Georgia Institute of Technology

Graduate Student

South DeKalb

Description

The South DeKalb (SDK) site is an urban location in a mixed commercial-residential area, approximately 15 km east of downtown Atlanta, GA near the intersection of two major highways. The site has been operated and maintained by the Environmental Protection Division (EPD) of the Georgia Department of Natural Resources since being established to monitor ozone in 1974. In addition to being part of the Georgia Ambient Air Monitoring Network, SDK is a part of the National Core Network (NCore), Photochemical Assessment Monitoring Stations (PAMS), Interagency Monitoring of Protected Visual Environments (IMPROVE) , National Air Toxics Trends Station (NATTS), and Chemical Speciation Network (CSN), which are all national pollutant monitoring networks. Within ASCENT, SDK is paired with the rural Look Rock site in the Great Smoky Mountains to investigate variations in atmospheric processes. Complementing ASCENT data, SDK has a suite of instruments listed in the table below that measure a wide range of pollutants and meteorology. Historical data can be accessed from the EPA.

Complementary Instrumentation 

ParameterInstrumentSampling FrequencyNetwork*
O3Thermo Scientific 49iContinuousS/P/C
SO2Thermo Scientific 43i-TLEContinuousC
NO, NO2, NOxTAPI N500 CAPSContinuousS/P
NOxThermo Scientific 42iContinuousS/P
NOyThermo Scientific 42iYContinuousS/P/C
COThermo Scientific 48i-TLEContinuousS/P/C
VOCsMarkes Agilent 7890BSeasonal ContinuousP
PM2.5, PM10 Teledyne T640XContinuousS
PM2.5Thermo Partisol-Plus 2025DailyS/C
PM2.5 CarbonURG 3000N1-in-3T/C
PM2.5 SpeciationMet One SASS1-in-3T/C
PM10 MetalsMet One Low-Vol1-in-6N
VOCsATEC 22001-in-6N
PAHsTisch Environmental PUF1-in-6N
CarbonylsATEC 80001-in-6, Seasonal IntensiveN, P
Temperature/Relative HumidityRM Young Temp/RH Probe 41382VCContinuousP/C
Wind Direction/SpeedRM Young Ultrasonic Anemometer 81000ContinuousP/C
Barometric PressureRM Young Barometric Pressure Sensor 61302ContinuousP/C
PrecipitationNovalynx 260-2501 Tipping BucketContinuousP/C

*Monitoring Types: S=SLAMS; P=PAMS; C=NCore; T=STN; N=NATTS