IAEA-140-OC , Sea Weed (Fucus sp.) !Out of stock!

Organic , Vegetation

  • Unit Size: 35g
  • Price per Unit: 130 EUR
  • Report: IAEA/AL/140
  • Date of Release: 1997-01-03
  • Reference Sheet: IAEA-140/OC
  • Producing Laboratory: email

The common brown seaweed, Fucus sp., (IAEA-140/OC) was obtained from the coast of Normandy, France, through a local supplier. The Fucus sample was freeze-dried and then micronized to give a particle size of less than 40 μm. The powder was further homogenized by mixing in a stainless steel rotating drum for 2 weeks. After checking for the homogeneity of the sample material, aliquots of about 35 g were packed into glass bottles with Teflon lined screw caps and sealed with Teflon tape.

Recommended values (based on dry mass)

Pesticides and PCBs

Analyte Unit Value 95% Confidence Interval N
β HCH ng/g 4.6 2.4 - 9.5 8
pp’ DDE ng/g 1.2 0.86 – 1.6 31
pp’ DDD ng/g 0.72 0.61 – 0.90 24
pp’ DDT ng/g 2.2 1.4 – 3.6 29
Dieldrin ng/g 1.7 0.72 – 2.8 23
PCB No 28 ng/g 1.7 1.3 – 2.5 17
PCB No 31 ng/g 1.8 1.7 – 2.1 5
PCB No 49 ng/g 1.6 1.1 – 1.9 6
PCB No 52 ng/g 3.8 2.6 – 4.9 24
PCB No 101 ng/g 2.4 1.9 – 3.2 24
PCB No 105 ng/g 0.49 0.4 – 0.7 13
PCB No 118 ng/g 1.0 0.97 – 1.10 10
PCB No 138 ng/g 1.7 1.2 – 2.6 24
PCB No 149 ng/g 1.2 1.1 – 1.6 6
PCB No 153 ng/g 1.7 1.3 – 3.1 27
PCB No 156 ng/g 0.17 0.08 – 0.36 7
PCB No 180 ng/g 0.43 0.38 – 0.52 17

Petroleum Hydrocarbons

Analyte Unit Value 95% Confidence Interval N
Total Aliphatics ng/g 27000 25000 – 42000 9
n-C17 ng/g 890 300 – 1300 19
Pristane ng/g 50 15 – 69 10
n-C18 ng/g 99 45 – 140 15
Phytane ng/g 56 25 – 100 13
∑ n Alkanes (C14 – C34) ng/g 11000 5600 - 2100 18
Phenanthrene ng/g 76 40 – 110 28
2 Methyl Phenanthrene ng/g 19 15 – 40 10
1 Methyl Phenanthrene ng/g 11 9 - 14 11
Anthracene ng/g 14 4 – 93 11
Chrysene ng/g 40 25 – 49 27
Fluoranthene ng/g 88 57 – 110 23
Pyrene ng/g 67 46 – 79 24
Benzo (k) Fluoranthene ng/g 19 15 – 27 8
Benz (a) Anthracene ng/g 25 14 – 32 23
Benzo (e) Pyrene ng/g 26 19 – 33 10
Benzo (a) Pyrene ng/g 20 16 – 22 15
Naphthalene ng/g 17 9 – 43 14
Benzo (ghi) Perylene ng/g 20 17 – 35 15
Indeno (123cd) Pyrene ng/g 33 20 – 53 10

(Value) Concentration calculated as a median of the accepted laboratory means
(N) Number of accepted laboratory means which are used to calculate the recommended or information values and their respective confidence intervals

Information values (based on dry mass)

Chlorinated pesticides

Analyte Unit Value 95% Confidence Interval N
HCB ng/g 1.3 0.35 – 3.3 30
α HCH ng/g 1.4 1.3 – 1.5 9
ɣ HCH (Lindane) ng/g 11 5.4 – 16 52
Heptachlor ng/g 3 0.99 – 4.4 12
Heptachlor Epoxide ng/g 0.79 0.32 – 1.4 8
Aldrin ng/g 0.76 0.50 – 4.5 15
Endrin ng/g 0.71 0.43 – 1.6 9
α Endosulfan ng/g 0.9 0.58 – 4.4 14
α Chlordane ng/g 1.4 0.36 – 2.8 8
Aroclor 1254 ng/g 25 12 – 41 23
Aroclor 1260 ng/g 12 1.9 – 13 14

PCB Congeners

Analyte Unit Value 95% Confidence Interval N
PCB No 18 ng/g 1.5 1.2 – 1.9 4
PCB No 44 ng/g 2 1.9 – 2.1 4
PCB No 66 ng/g 0.89 0.65 – 1.1 4
PCB No 70 ng/g 1.8 1.1 – 4.0 4
PCB No 77 ng/g 0.19 0.04 – 6.9 4
PCB No 87 ng/g 1.6 1.2 – 2.0 4
PCB No 99 ng/g 0.9 0.75 – 1.4 4
PCB No 170 ng/g 0.21 0.16 – 0.76 7
PCB No 187 ng/g 0.38 0.3 – 1.2 4

Petroleum Hydrocarbons

Analyte Unit Value 95% Confidence Interval N
UVF equivalent Chrysene ng/g 3500 1200 – 5400 8
UVF equivalent ROPME oil ng/g 29000 11000 – 39000 8
Resolved Aliphatics ng/g 13000 6400 – 24000 16
Unresolved Aliphatics ng/g 26000 12000 - 48000 8
Total Aromatics ng/g 5800 750 - 16000 8
Resolved Aromatics ng/g 350 150 - 500 8
Unresolved Aromatics ng/g 8100 3900 – 17000 4
Fluorene ng/g 6.5 4.6 - 1600 7
Benzo (b) Fluoranthene ng/g 37 33 - 37 6
Perylene ng/g 5 2.7 – 9.8 4
1 Methyl Naphthalene ng/g 13 6.5 – 15 4
2 Methyl Naphthalene ng/g 16 9 – 23 4
Dibenz (ah) Anthracene ng/g 4.5 2.6 – 160 6
Acenaphthene ng/g 3.4 3.3 – 7.0 3

(Value) Concentration calculated as a median of the accepted laboratory means
(N) Number of accepted laboratory means which are used to calculate the recommended or information values and their respective confidence intervals

The values listed above were established on the basis of statistically valid results submitted by laboratories which had participated in an international interlaboratory comparison organized by IAEA Marine Environment Laboratory, Monaco. The details concerning the criteria for qualification as a recommended or information value can be found in the respective report (attached).

 

Help and Service
Copyright © 2009 International Atomic Energy Agency, P.O. Box 100, Wagramer Strasse 5, A-1400 Vienna, Austria