4.1.3(3) dioxins & furans

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  • dioxin dioxin dioxin dioxin dioxin /

  • (POPs) POPs

    organochlorine PCBs dioxins & furans

  • organochlorine + tetraethyl lead

    Dioxin+ dichloroethane

  • Contamination with PCBs

    Yusho, 1968 Rice oil contamination Severe chloracn disease

  • Hair loss Brown colored nails

  • - 1 - -

  • (Dioxins) (unintentional product) 2 2 210

    o

    o

    o Cl n Cl n Cl n Cl n

    Dioxins Furans

  • o

    o

    o Cl n Cl n Cl n Cl n

    Dioxins (PCDD) Furans (PCDF)

    Chlorine in molecule PCDD PCDF

    1. Monochlorine 2 4 2. Dichlorine 10 16 3. Trichlorine 14 28 4. Tetrachlorine 22 38 5. Pentachlorine 14 28 6. Hexachlorine 10 16 7. Heptachlorine 2 4 8. Octachlorine 1 1

    75 135

  • 1

    PCDDs/PCDFs TEF NATO/CCMS 1988 TEF WHO 1997

    2378- TetraCDD 1.0 1.0

    12378- PentaCDD 0.5 1.0

    123478- HexaCDD 0.1 0.1

    123678- HexaCDD 0.1 0.1

    123789-HexaCDD 0.1 0.1

    1234678-HeptaCDD 0.01 0.01

    OctaCDD 0.001 0.0001

  • 2378-TetraCDF 0.1 0.1

    12378-PentaCDF 0.05 0.05

    23478-PentaCDF 0.5 0.5

    123478-HexaCDF 0.1 0.1

    123678-HexaCDF 0.1 0.1

    123789-HexaCDF 0.1 0.1

    234678-HexaCDF 0.1 0.1

    1234678-HeptaCDF 0.01 0.01

    1234789-HeptaCDF 0.01 0.01

    OctaCDF 0.001 0.0001

    PCDDs/PCDFs TEF NATO/CCMS 1988 TEF WHO 1997

    The NATO Committee on the Challenges of Modern Society

  • TEF = Toxicity Equivalent Factors, referred to the most toxic

    one : 2,3,7,8 TCDD (TEF = 1)

    Toxic Equivalent :

    TEQ = (TEF * concentration)

    TEQ

  • dioxin 800

  • Precursor chemical substances ( dioxins)

    Bromobenzene Chlorobenzene Chlorohydroquinone P-dichlorobenzene O-dichlorobenzene 1,2-dichloro-4-nitrobenzene 1,3,5-tribromobenzene 1,2,4-trichlorobenzene 2,4,5-trichloronitrobenzene 1,2,3-trichlorobenzene

    : 40CFR766_38 (1944)

  • Contribution of varied foodstuffs to dioxins

    exposure (AFSSA 2000) Meats

    15,0 %

    Seafood

    26,2 %

    Eggs

    6,1 %

    Cereals

    3,4 % Fruits and vegetables

    9,3 %

    Butter

    19,4 %

    Fat

    (Except butter)

    0,8 %

    Other dairy products

    19,80 %

  • (Agenda 21) 2548

  • 1. *

    * * 2. * * * *

    * * *

  • 3. * * 4. /

  • 5. - - - - - - 6. 7. 8. 9. 10.

  • 31 2548

    ( POPs) / POPs

    POPs //

  • 9

    12

  • / POPs 2550

  • ()

    POPs 3

    / POPs

    (Pollutants Release and Transfer Registers: PRTR)

    BAT/BEP BAT/BEP

  • ()

    http://pops.pcd.go.th

  • 1. 0.1 ng-TEQ/Nm3 2. 0.1 ng-TEQ/Nm3 3. 0.1 ng-TEQ/Nm3 4. 0.1 ng-TEQ/Nm3 5. 0.1 ng-TEQ/Nm3 6. 0.1 ng-TEQ/Nm3 7. 13 ng-TEQ/Nm3 8. 30 ng-TEQ/Nm3 1 /

  • UHT ()

    6 TEQ /g milk fat

    UHT ()

    1 ppt (part per trillion)

    1-4 pg/kg body weight

  • : WHO 1 4 1. ..2540 2. ..2540 3. ..2548 4. ..2549

  • 1. 2.

    3.

    4.

  • (51)

    (basic/detail design)

  • perspective

  • TEQ

    Congener TEF Congener TEF

    Dibenzo-p-dioxins Non-ortho PCBs

    2,3,7,8-TCDD 1 PCB 77 0.0001 1,2,3,7,8-PeCDD 1 PCB 81 0.0001 1,2,3,4,7,8-HxCDD 0.1 PCB 126 0.1 1,2,3,6,7,8-HxCDD 0.1 PCB 169 0.01 1,2,3,7,8,9-HxCDD 0.1

    1,2,3,4,6,7,8-HpCDD 0.01

    Mono-ortho PCBs

    OCDD 0.0001

    PCB 105 0.0001

    PCB 114 0.0005

    Dibenzofurans

    PCB 118 0.0001

    2,3,7,8-TCDF 0.1

    PCB 123 0.0001

    1,2,3,7,8-PeCDF 0.05

    PCB 156 0.0005

    2,3,4,7,8-PeCDF 0.5

    PCB 157 0.0005

    1,2,3,4,7,8-HxCDF 0.1

    PCB 167 0.00001

    1,2,3,6,7,8-HxCDF 0.1

    PCB 189 0.0001

    1,2,3,7,8,9-HxCDF 0.1 2,3,4,6,7,8-HxCDF 0.1 1,2,3,4,6,7,8-HpCDF 0.01 1,2,3,4,7,8,9-HpCDF 0.01 OCDF 0.0001

  • 1. 0.5 (.2540) 2. 30 (.2545) 3. 0.5 (.2548) 4. 0.5 (.2549)

  • 1 (2540) 30 (Dioxins/Furans I- TEQ) 2 (..2545) / 0.5 (Dioxins/Furans I- TEQ)

  • 3 (2546) 0.5 (Dioxins/Furans I- TEQ) 4 (2549) 0.5 (Dioxins/Furans I- TEQ)

  • perspective

    Dioxin project (ERTC)

  • .

  • Air treatment in-out system for laboratory

  • Waste water treatment system for laboratory

    1. Primary Tank

    2. Circulating Tank

    3. Disposal Tank (H2O2)

    4. Ozone Tank 5.UV Contract Tank

    6.Disposal Tank (check)

    7.Secondary Tank

    8. Holding Tank (check)

  • 1 Data Processing Room +0 Pa 2 Air Lock Room +0 Pa 3 Toxic Wastes Storage Room -50 Pa 4 Waste Storage (for Used Filter) -50 Pa 5 Very Low Level Preparation Room -10 Pa 6 Samples Extraction Room (Low Level) -20 Pa

    7 Clean up Room (Low Level) -20 Pa 8 Clean Storage Room (Low Level) +0 Pa 9 Chemical Storage Room -20 Pa 10 Room for Preparation and Storage of

    the Standard Substances -50 Pa

    11 Clean Storage Room (High Level) +0 Pa 12 Samples Extraction Room (High Level) -40 Pa

    13 Clean up Room (High Level) -40 Pa 14 HRGC/HRMS & GC/MS -10 Pa

  • PUF

  • . 5 .

  • 5 .

  • A: . B: .

  • Page 55

  • 1000 recycle reuse

  • Inventory &

    Daily intake (2012-2015)

    Monitoring program (2012-2020)

    Research for decrease dioxin emission (2013-2520)

    Training program (2013 - )

    DXN Lab

    Service Lab (2013 -)

    7

  • 02-5778400 5203, 5115 02-5774182 1224

  • Page 68

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