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NOAA’s Atmospheric Mercury Monitoringin the Gulf of Mexico Region
[April 2007 summary]
This summary is updated periodically, and the current version is posted (in PowerPoint and PDF formats) at:
http://www.arl.noaa.gov/data/web/reports/cohen/grand_bay_atmos_hg.ppthttp://www.arl.noaa.gov/data/web/reports/cohen/grand_bay_atmos_hg.pdf
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Assemble a long-term, publicly available data record
Discern trends in atmospheric mercury concentrations
Derive dry deposition estimates
Elucidate mercury source-receptor relationships
Establish correlations with meteorology and ancillary trace species to better understand the emission, transport, transformations, and fate of mercury in the atmosphere
Provide a data set for model evaluation
In September 2006, the National Oceanic and Atmospheric Administration (NOAA) Air Resources Laboratory (ARL) and the Grand Bay NERR established a long-term atmospheric monitoring station for the measurement of speciated mercury compounds and ancillary trace species at the Grand Bay (Mississippi) National Estuarine Research Reserve (NERR) in Moss Point, MS.
The measurements are designed to:
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Grand Bay Estuarine Research Reserve
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November 2006: Update –Grand Bay NERR
• Ancillary trace measurements added October 20, 2006:CO, O3, SO2
• Site operator selected and given initial training, SOPguidelines and instructions, Instrument status forms,etc.
• Scaffold Tower added Oct. 20, 2006Current height of Inlet: 4 m
• Will add dedicated Met system and new CO detectorDec. 2006
• Discussions proceeding on renovation of Pavilion site,addition of tilt-down tower, Internet communications,etc.
• Will establish MDN measurements FY2007
• Equipment procurement:SO2, Trailer improvements/replacement, Internet, etc.
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Recent Upgrades to Grand Bay NERR Site:Recent Upgrades to Grand Bay NERR Site:Feb. 27Feb. 27--March 1, 2007March 1, 2007
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Added:Added:
•• Meteorological measurementsMeteorological measurements(T, RH, WS, WD, Solar, (T, RH, WS, WD, Solar, PrecipPrecip Rate/Amount)Rate/Amount)
•• Upgraded CO DetectorUpgraded CO DetectorRun sideRun side--byby--side with side with original instrument fororiginal instrument forQA, continuity of QA, continuity of measurementsmeasurements
•• New data acquisition New data acquisition software for CO, Osoftware for CO, O33, Met, Met
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BB
BB
CC
CC
CC
CC
CC
AA
AA
AA
AA
AA
AA
AA
TypeType
Feb 2007Feb 2007Relative HumidityRelative Humidity
Feb 2007Feb 2007Wind DirectionWind Direction
Feb 2007Feb 2007Wind speedWind speed
**Nitrogen Oxides (NO, Nitrogen Oxides (NO, NOyNOy))
Oct 2006Oct 2006Carbon MonoxideCarbon Monoxide
Oct 2006Oct 2006OzoneOzone
Oct 2006Oct 2006Sulfur dioxideSulfur dioxide
Sept 2006Sept 2006Reactive gaseous mercuryReactive gaseous mercury
Sept 2006Sept 2006Elemental mercuryElemental mercury
**Major ions in precipitationMajor ions in precipitation
**Total mercury in precipitationTotal mercury in precipitation
Feb 2007Feb 2007PrecipitationPrecipitation
Feb 2007Feb 2007TemperatureTemperature
Sept 2006Sept 2006Fine particulate mercuryFine particulate mercury
Start DateStart DateMeasurementMeasurement
Type of Measurement:A = concentration in ambient airB = concentration in precipitationC = meteorological parameter
April 2007: Status of Atmospheric MeasurementsApril 2007: Status of Atmospheric Measurementsat Grand Bay NERR, Mississippiat Grand Bay NERR, Mississippi
* to be established
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Planned Activities at Grand Bay NERR Site:Planned Activities at Grand Bay NERR Site:April 30April 30--May 3, 2007May 3, 2007
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•• Remove old CO detectorRemove old CO detector(has been running side by (has been running side by side with new instrument side with new instrument for the last month)for the last month)
•• Add freshly calibrated OAdd freshly calibrated O33detector to run side by sidedetector to run side by sidewith current Owith current O33 detector fordetector forabout a month about a month ––QAQA
•• TekranTekran maintenance, filtermaintenance, filterand glassware changes as and glassware changes as neededneeded
•• Replace a/c unit in trailerReplace a/c unit in trailer
•• Meet with contractors Meet with contractors ––fence,fence,power, etc.power, etc.
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Update on Planned Future ActivitiesUpdate on Planned Future Activities
•• Initial cost estimate to extend roofline of Pavilion and addInitial cost estimate to extend roofline of Pavilion and adda secured private enclosure was almost $30Ka secured private enclosure was almost $30K
•• The new plan is to simply constructThe new plan is to simply constructa wooden privacy fence near the a wooden privacy fence near the Pavilion, to hide and protect thePavilion, to hide and protect thetrailer and monitoring equipmenttrailer and monitoring equipmentand to restrict access to a plannedand to restrict access to a plannedwalkwalk--up sampling scaffold (10m) up sampling scaffold (10m)
•• Procurement requestProcurement requestfor trailer will befor trailer will besubmitted in thesubmitted in thecoming days.coming days.
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Update on Planned Future ActivitiesUpdate on Planned Future ActivitiesContinuedContinued
Other activities planned for FY2007:Other activities planned for FY2007:
•• Addition of MDN collector, NO/NOAddition of MDN collector, NO/NOYY analyzeranalyzer
•• Purchase and installation of new, upgraded trailerPurchase and installation of new, upgraded trailer
•• Possible upgrade of SOPossible upgrade of SO22 detector (subject to availabilitydetector (subject to availabilityof funds)of funds)
•• Installation of second Installation of second TekranTekran system to allow forsystem to allow forevaluation of QA/QC protocols, and to provide aevaluation of QA/QC protocols, and to provide acontinuous data stream.continuous data stream.
•• Pavilion site upgrades as discussed above, including powerPavilion site upgrades as discussed above, including powerand internet accessand internet access
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NOAA
SEARCH
USGS
UWF/FSU
MDN
Monitoring Site
coal-fired power plant
waste incinerator
manufacturing
metallurgical
other fuel combustion
type of mercuryemissions source
total atmosphericmercury emissions (kg/yr, 1999 EPA NEI)
50 - 100
100 - 200
200 - 400
1 – 50
Barry
Holcim Cement
NOAA Grand BayNERR Hg site
WeeksBay
OLF
MolinoPace
Ellyson
Jack Watson
AL24
AL02
CristPascagoula MSW incin
haz waste incin
paper manufpaper manuf
Victor J. Daniel
Location of the new NOAA Grand Bay NERR Atmospheric Mercury monitoring site, other atmospheric Hg monitoring sites, and major Hg point sources in the region (according to the EPA 1999 NEI emissions inventory)
MobileBay
Mobile
Pascagoula
Mississippi Alabama
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NOAA
SEARCH
USGS
UWF/FSU
MDN
Monitoring Site
coal-fired power plant
waste incinerator
manufacturing
metallurgical
other fuel combustion
type of mercuryemissions source
Holcim Cement
NOAA Grand BayNERR Hg site
AL24
AL02
Pascagoula MSW incin
haz waste incin
paper manuf
paper manuf
Victor J. Daniel
Location of the new NOAA Grand Bay NERR Atmospheric Mercury monitoring site, other atmospheric Hg monitoring sites, and major Hg point sources in the region (according to the EPA 1999 NEI emissions inventory)
WeeksBay
Barry
Jack Watsontotal atmosphericmercury emissions (kg/yr, 1999 EPA NEI)
50 - 100
100 - 200
200 - 400
1 – 50
MobileBay
Mobile, AL
Pascagoula, MS
Mississippi
Alabama
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10 km
Pascagoula MSW Incinerator
Pascagoula, MS
12
1 km
30.4294, -88.4277
30.412, -88.404
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Oct 2006 pictures of initial monitoring site
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U.S. Fish and Wildlife Service Pavilion at Grand Bay NERR
View looking south and west from the U.S. Fish and Wildlife Service Pavilion at Grand Bay NERR
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Pictures of planned (eventual) monitoring site
View looking east from the U.S. Fish and Wildlife Service Pavilion at Grand Bay NERR
Mercury at Grand Bay NERR -2007
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0 5 10 15 20 25 30 35 40 45Julian Decimal Day (2007)
Hg(
0) (n
g m
-3)
Hg(0)
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Mercury at Grand Bay NERR -2007
0
5
10
15
20
25
30
0 5 10 15 20 25 30 35 40 45Julian Decimal Day (2007)
RG
M (p
g m
-3)
RGM
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Mercury at Grand Bay NERR -2007
0
5
10
15
20
25
30
35
0 5 10 15 20 25 30 35 40 45Julian Decimal Day (2007)
FPM
(pg
m-3
)
FPM
Peak 103 pg m-3 Peak 45.6 pg m-3
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For additional information on these atmospheric measurements,
please contact:
winston.luke@noaa.gov
steve.brooks@noaa.gov
mark.cohen@noaa.gov
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