Mass Dstrbuto of Mercury amog Ecosystem Compoets the Florda Everglades Guaglag Lu, G. Melode Naja 2, Yog Ca, Peter Kalla 3, Da Schedt 3, Evely Gaser, Georgo Tachev, Davd Roelat : Florda Iteratoal Uversty 2 : Everglades Foudato 3 : US EPA Rego 4
Hg cotamato the Everglades Hg 2
Mercury Cyclg the Florda Everglades 3
Questo How much Hg s preset each ecosystem compoet the Everglades? 4
Objectve To establsh mass vetory for ad MeHg the four maagemet uts of the Everglades. WCA WCA 2 WCA 3 ENP 5
Method Mass vetory Iput Output Deposto Evaso Iflow Water Floc Mass Storage Perphyto Macrophyte Outflow Sol Fsh 6
7 Mass Storage (at samplg: Nov 2005) 3 0 ) ( A d C M SW SW SW π π 6 0 ) ( A BD d C M SD SD SD SD π π 6 0 ) ( A BD d C M FC FC FC FC π π A BM C M PE PE PE ) ( π π A BM W C M FS FS FS FS ) ( π π Water: Sol: Floc: Perphyto: Fsh: mass cocetrato Water volume cluso probablty A BM C M PE PE PE ) ( π π Macrophyte:
Iput (durg 2005 wet seaso: May-Nov) Deposto: deposto Wet deposto Dry deposto M M + BD WD M DD Iflows: Mea Coc Total water flows M IF IF C * V IF 8
Output (durg 2005 wet seaso: May-Nov) Evaso: M EV 2( g / m2 / h) *0( h / d )*80( d ) * A Maagemet ut Iflow Structures Outflow Structures Outflows: WCA WCA 2 WCA 3 ENP G30, G30, G300, G25, S362, S0, G94, S39, G30 ACME, ACME2 S0, S7, G335 S34, S38, S S, S8, S9, S40, S50, S90 S2, S3, S42, S333, S343, S344, G69 S2, S8, S74, S332, S333-S334 C, Taylor Rver Slough, Shark Rver Slough, Trout Mea Coc M OF OF C * Total water outflows V OF Creek, Taylor Creek, 9
Databases EPA Everglades R-EMAP (2005) MDN USGS ACME SFWMD DBHRDRO Others 0
26.6 LNWR 2005 R-EMAP 26.4 Lattude, decmal degrees 26.2 26 25.8 25.6 25.4 ENP WCA 3 WCA 2 Ecosystem-wde samplg Probablty samplg desg Closed crcle: May, 09 Ope crcle: November, 9-8 -80.8-80.6-80.4 Logtude, decmal degrees
Results Deposto.4 Evaso 2.06 Iflow 0.27 (A) Water:.30 Floc: 9 Perphyto: 0.07 Sol (top 0 cm layer):784 Macrophyte: 9.94 Fsh: 0.028 Outflow 0.88 Deposto 0.9 Evaso.96 WCA Iflow 0.906 (B) Water:.56 Floc: 5 Perphyto: 0.64 Sol (top 0 cm layer): 05 Macrophyte: 5.98 Fsh: 0.077 Outflow 0.909 WCA 2 mass (kg) vetory 2
Iflow 3.0 (C) Deposto 47 Water: 4.2 Evaso 8.5 Floc: 577 Perphyto: 2.2 Sol (top 0 cm layer): 4302 Macrophyte: 46 Fsh: 0.89 Outflow 2.5 Deposto 67 Evaso 2 WCA 3 Iflow 2.7 (D) Water: 2.6 Floc: 47 Perphyto: 4 Macrophyte: 35 Outflow 0.34 mass (kg) vetory Sol (top 0 cm layer): 738 Fsh: 0.96 ENP 3
mass (kg) vetory Compartmet I (kg) Out (kg) Total accumulated (kg) Legacy Hg (kg) Legacy Hg / area (g/m2) WCA.7 2.2 9.4 94.6 WCA 2.8 2.9 8.9 38 2. WCA 3 50.3. 39.2 493 2. ENP 69.9 2.4 57.5 7602 2.3 Legacy Hg s huge Sol ad floc are ma sks trasport s lmted Iputs > outputs 4
Iflow 0.027 (A) Water: 0.9 Floc: 4.53 Perphyto: 0.005 Macrophyte: 0.70 Outflow 0.055 Sol (top 0 cm layer):9.84 Fsh: 0.028 WCA Iflow 0.26 (B) Water: 0.22 Floc: 2.33 Perphyto: 0.06 Macrophyte: 0.42 Outflow 0.09 MeHg mass (kg) vetory WCA 2 Sol (top 0 cm layer): 3.75 Fsh: 0.077 5
Iflow 0.36 (C) Water: 0.43 Floc: 9.65 Perphyto: 0.5 Macrophyte: 3.22 Outflow 0.9 Sol (top 0 cm layer): 8.6 Fsh: 0.89 WCA 3 Iflow 0.20 (D) Water: 0.30 Floc: 3.9 Perphyto: 4.32 Sol (top 0 cm layer): 40.4 Macrophyte: 2.48 Fsh: 0.96 Outflow 0.024 ENP MeHg mass (kg) vetory 6
MeHg mass (kg) vetory Compartmet I (kg) Out (kg) Accumulated (kg) Legacy (kg) Legacy MeHg / area (g/m2) WCA 0.027 0.055 0.028 5 0.027 WCA 2 0.26 0.09 0.7 6.8 0.02 WCA 3 0.36 0.9 0.7 32 0.04 ENP 0.20 0.024 0.8 5 0.05 Large legacy MeHg Sol, floc, ad macrophyte are ma sks Trasport across maagemet ut may be lmted, except for WCA 2 7
Ucertaty - WCA WCA 2 WCA 3 ENP Water Mass storage (kg).3.6 4.2 2.6 Ucertaty (%) 7 7 7.3 Sol Mass storage (kg) 784 05 4302 738 Ucertaty (%) 0 5 4. 6.7 Floc Mass storage (kg) 9 5 577 4 Ucertaty (%) 42 37 30 3 Perphyto Mass storage (kg) 0.067 0.64 2.2 4 Ucertaty (%) 25 25 0 4 Mosqutofsh Mass storage (kg) 0.028 0.077 0.89 0.96 Ucertaty (%) 7 25 8
Ucertaty - MeHg WCA WCA 2 WCA 3 ENP Water Mass storage (kg) 0.9 0.22 0.43 0.30 Ucertaty (%) 33 9 2 4 Sol Mass storage (kg) 9.8 3.8 8 40 Ucertaty (%) 37 29 2 8 Floc Mass storage (kg) 4.5 2.3 9.6 3.9 Ucertaty (%) 57 57 30 30 Perphyto Mass storage (kg) 0.0050 0.057 0.5 4.3 Ucertaty (%) 28 28 9 9
Summary Everglades s a sk for Hg, wth Hg legacy WCA, WCA2, WCA3 ad ENP beg 749 kg, 250 kg, 3920 kg ad 9340 kg, respectvely. Dfferet patters mass storage betwee ad MeHg : Sol >> floc MeHg: Sol > floc > macrophyte Trasport of Hg across regos plays a lmted role Hg cyclg, except for WCA 2 20
Ackowledgemets EPA Offce of Research ad Developmet US EPA Rego 4 Army Corps of Egeers Natoal Park Servces Florda Departmet of Evrometal Protecto Everglades Foudato Departmet of Eergy Mercury Laboratory (SERCMLAB) at FIU Battelle Mare Scece Laboratory 2