+ All Categories
Home > Documents > Lead Contamination in Drinking Water and Associated ... › projects › lead... · Lead...

Lead Contamination in Drinking Water and Associated ... › projects › lead... · Lead...

Date post: 30-Jun-2020
Category:
Upload: others
View: 2 times
Download: 0 times
Share this document with a friend
14
Lead Contamination in Drinking Water and Associated Housing Characteristics in the Mississippi Delta Kristie Willett, Stephanie Otts, John Green, Lynn Woo, Alex Fratesi, Rachel Haggard, Cathy Janasie, Cammi Thornton, Josephine Rhymes
Transcript
Page 1: Lead Contamination in Drinking Water and Associated ... › projects › lead... · Lead Contamination in Drinking Water and Associated Housing Characteristics in the Mississippi

LeadContaminationinDrinkingWaterandAssociatedHousingCharacteristicsintheMississippiDelta

KristieWillett,StephanieOtts,JohnGreen,LynnWoo,AlexFratesi,RachelHaggard,CathyJanasie,CammiThornton,JosephineRhymes

Page 2: Lead Contamination in Drinking Water and Associated ... › projects › lead... · Lead Contamination in Drinking Water and Associated Housing Characteristics in the Mississippi

Lead(Pb)

Oneofoldestmoststudiedtoxicants,ubiquitousSources:smelters,coalburning,leadedgas,pipesesp.ifpHlessthan6.4,potteryglazes,paint

http://www.epa.gov/lead/

Page 3: Lead Contamination in Drinking Water and Associated ... › projects › lead... · Lead Contamination in Drinking Water and Associated Housing Characteristics in the Mississippi

ProjectBackground•  UMLeadinDrinkingWaterTeamformedin2016.Co-ledbyJohnGreen(sociology),StephanieOtts(law),andKristieWillett(toxicology).

•  ORSPInvestmentGrantin2016toworkwithcommunitypartnersinMississippiDeltatoraiseawarenessoftheissueandcollect/analyzeresidentialwatersamples.

•  MWRRIgrantin2017toassesseffectivenessofvariouscommunityengagementstrategies.

•  ApproachedbyFoundationfortheMid-Southin2018toexpandworktoJacksontosupporteffortsofJacksonWaterCoalitionfundedin2018byUMCommunityWellbeingConstellation.

Page 4: Lead Contamination in Drinking Water and Associated ... › projects › lead... · Lead Contamination in Drinking Water and Associated Housing Characteristics in the Mississippi

ResearchQuestions•  Can multi-disciplinary, multi-method, andcommunity-basedapproaches to researchprovidemoredatatotestforpotentialleadexposure?

•  Can these data be used to inform bettermonitoring,outreach,andpolicyreform?

•  BasedonLCRviolations,ourworkhas focusedoncountiesinandcontiguoustotheMississippiDelta.

Page 5: Lead Contamination in Drinking Water and Associated ... › projects › lead... · Lead Contamination in Drinking Water and Associated Housing Characteristics in the Mississippi

http://reic.uwcc.wisc.edu/water/

Page 6: Lead Contamination in Drinking Water and Associated ... › projects › lead... · Lead Contamination in Drinking Water and Associated Housing Characteristics in the Mississippi

CommunityPartners•  NewPathwaystoHealthInitiative,Tri-CountyWorkforceAlliance•  JamesC.KennedyWellnessCenter•  Right!FromtheStartProgramstaffandchurchpartners•  MississippiStateUniversityExtension•  HarvardLawSchoolMississippiDeltaProject/DeltaDirectionsConsortium•  AaronE.HenryCommunityHealthCenterandDeltaHealthCenter

J.Rhymes

S.SnellRight!fromtheStartInitiative

J.Barrett

Page 7: Lead Contamination in Drinking Water and Associated ... › projects › lead... · Lead Contamination in Drinking Water and Associated Housing Characteristics in the Mississippi

CommunityEngagement&WaterTestingProcess

If water lead concentrationis>5ppb,afilterisprovidedto resident. All participantsreceive their results andleadinfosheet.

Page 8: Lead Contamination in Drinking Water and Associated ... › projects › lead... · Lead Contamination in Drinking Water and Associated Housing Characteristics in the Mississippi

Findings•  307householdshaveparticipatedintheprojectinsomeway

ü  214householdsrespondedtothesurveyandreturnedwatersamples

ü  Datarepresents16countiesand50censustractswiththemajorityfromHumphreys(n=42)andCoahoma(n=39),thenPanola(n=26),Sunflower(n=20),Washington(n=20),Bolivar(n=19),andQuitman(n=17)counties

ü  Percent bottle return from 8 different engagementapproachesrangedfrom49-100%withanaverageof70%.

ü  Participantswithleadconcentrationsexceeding5ppb(n=10)receivedcertifiedNSF/ANSIStandard53filter.

Page 9: Lead Contamination in Drinking Water and Associated ... › projects › lead... · Lead Contamination in Drinking Water and Associated Housing Characteristics in the Mississippi

Leadanddrinkingwaterhouseholdcharacteristics(Householdsreturningbothquestionnairesandwatersamples,Totaln=214)

CharacteristicsDeltaMS

f %

Housingtenure

Renters 61 30

Owners 134 65

Otherarrangement 12 5

Housingtype

House 162 78

Mobilehome 22 10

Apartment/townhouse 25 12

Knowwhenbuilt(yes) 113/206 54

Built1985orearlier(yes) 54/113 48

Pipeseverreplaced

Yes 34 17

Unsure 78 38

No 90 45

SourceofwaterPublicsystem 180 89Well 23 11

Usefilterfordrinkingwater(yes) 64/213 30

Usefilterforice(yes) 66/213 31

Page 10: Lead Contamination in Drinking Water and Associated ... › projects › lead... · Lead Contamination in Drinking Water and Associated Housing Characteristics in the Mississippi

DrinkingwaterpHandleadconcentrationresults(ppb)

CharacteristicspH

(n=213)Lead(ppb)(n=214)

Mean 7.74 0.84

Median 7.82 0.30

Standarddeviation 0.52 1.86

Minimum-Maximum 5.84–9.13 nd–14.32

Pearson’scorrelationbetweenpHandleadconcentration -0.35

Page 11: Lead Contamination in Drinking Water and Associated ... › projects › lead... · Lead Contamination in Drinking Water and Associated Housing Characteristics in the Mississippi

LeadConcentrationvs.WaterpHorYearHousingStructureWasBuilt

0

2

4

6

8

10

12

14

16

0 2 4 6 8 10

Aver

age

lead

con

cent

ratio

n (p

pb)

pH of water sample

JacksonMetroRegionDeltaandNorthernRegion

r=-0.35

0

2

4

6

8

10

12

14

16

1880 1900 1920 1940 1960 1980 2000 2020 2040 Aver

age

lead

con

cent

ratio

n (p

pb)

Year housing structure was built

r=-0.23

Page 12: Lead Contamination in Drinking Water and Associated ... › projects › lead... · Lead Contamination in Drinking Water and Associated Housing Characteristics in the Mississippi

Conclusions•  Research revealed that some communities in Mississippi are

experiencingelevatedconcentrationsofleadintheirdrinkingwater.

•  Neither water pH nor age of housing consistently predicted higherleadconcentrations.

•  In a well-owner community event, 6 of the 20 samples had leadconcentrations above the FDA’s 5 ppb limit. The averagepHof thewellsampleswas6.97.

•  http://nsglc.olemiss.edu/projects/lead-contamination/index.html

Page 13: Lead Contamination in Drinking Water and Associated ... › projects › lead... · Lead Contamination in Drinking Water and Associated Housing Characteristics in the Mississippi

OngoingWork•  Continue to informandempowerMississippi residents/parents tomake

behavioral choices in their own homes and communities throughresidentialandschooldrinkingwatertestingevents.

•  Enhance community engagement in high risk exposurepopulations (e.g.JacksonMS,wellowners,andnewmothers).

•  Assess programmatic features, such as implementation and outreachdifferences across the rural-urban continuum, to make scalablerecommendationsforthestateandnation.

Page 14: Lead Contamination in Drinking Water and Associated ... › projects › lead... · Lead Contamination in Drinking Water and Associated Housing Characteristics in the Mississippi

For water: Filters certified by NSF International

[email protected]


Recommended