PESTICIDE RESIDUES IN FOOD - 1979
Sponsored jointly by FAO and WHO
EVALUATIONS 1979
Joint meeting of the
FAO Panel of Experts on Pesticide Residues
in Food and the Environment
and the
WHO Expert Group on Pesticide Residues
Geneva, 3-12 December 1979
ANNEX I
ACCEPTABLE DAILY INTAKES, RESIDUE LIMITS AND GUIDELINE LEVELS
RECOMMENDED AT THE 1979 MEETING
These figures are additional to, or amend, those recorded in annexes
of the reports of earlier meetings. Limits recommended at meetings
from 1965 - 1977 inclusive are summarized in document FAO/WHO 1978c.
This table includes maximum acceptable daily intakes (ADIs), maximum
residue limits (MRLs), extraneous residue limits (ERLs) and guideline
levels (GLs). These terms are defined in annex 3 of the report of the
1975 meeting. Some ADIs and MRLs are temporary: in these cases the
year in which further data are required is specified in parenthesis
below the ADI. ERLs are identified by the symbol (E) after the limit.
Part I lists ADIs, MRLs and ERLs. Part II lists GLs.
New, as distinct from amended, recommendations are identified by the
symbol * before the commodity or before the ADI. Residue levels at or
about the limit of determination are followed by the symbol **.
Certain corrections of previous publications are included.
Pesticide
and the year ADI MRL
of previous mg/kg Commodity or Remarks
evaluations see body ERL
list on p. 557-560 weight mg/kg
acephate 0.02 lettuce 5 Limits are for acephate only. Separate
1976 soybeans 0.5 recommendations are made for the metabolite
methamidophos.
aldicarb *0.001 *bananas 0.5 Limits are for the sum of aldicarb, its
*beans (dried) 0.1 sulphoxide and its sulphone, determined
*citrus fruits 0.2 as aldicarb sulphone and expressed as
*coffee beans 0.1 aldicarb.
cottonseed 0.1
*carcase meat 0.01**
*milk 0.002**
*onions 0.05**
*peanuts 0.05**
*potatoes 1
*soybeans 0.02**
*sugar beet 0.05**
*sugar beet leaves 1
bromide ion 1 *cabbage 100 See also FAO/WHO, 1972a. MRLs apply to
1968, 1969 cereal grains 50 bromide ion from all sources. They do
1971 *lettuce 100 not include organically combined
wheat flour bromine. Cereal grains and wheat flour
wholemeal) 50 (wholemeal) are replacement definitions
for raw cereals and wholemeal flour.
sec-butylamine 0.1 cattle, kidney 3
1975,1977 (1981) cattle, liver 0.2
1978 goats, kidney 3
goats, liver 0.2
milk 1 Increased from 0.5
milk products MRL
withdrawn
Pesticide
and the year ADI MRL
of previous mg/kg Commodity or Remarks
evaluations see body ERL
list on p. 557-560 weight mg/kg
sec-butylamine pigs, kidney 3
(cont'd) pigs, liver 0.2
sheep, kidney 3
sheep, liver 0.2
carbaryl 0.01 *kiwi fruit 10
1965, 1966, 1967,
1968, 1969, 1970,
1973, 1975, 1976,
1977
carbofuran 0.003 animal feeds, not MRL All MRLs for carbofuran are
1976 (1980) otherwise listed withdrawn provisional until 1980.
fodder beets MRL
withdrawn
*egg plants 0.1**
*kohlrabi 0.1**
sugar beet leaves 0.2
carbophenothion 0.0005 apples 1 ADI allocated and temporary MRLs
1972, 1976, 1977 pears 1 converted to MRLs.
chlordimeform 0.0001 Temporary ADI extended at same level.
1971, 1975, 1977, (1980)
1978
chlorothalonil 0.03 bananas (whole) 0.2 Temporary ADI extended at same
1974, 1977, 1978 (1981) bananas (pulp) 0.05 level. Limits are for the sum of
*grapes 5 chlorothalonil and
4-hydroxy-2,5,6-trichloro-1,3-benzenedicarbonitrile,
expressed as chlorothalonil. All MRLs for
chlorothalonil are provisional until 1981.
Pesticide
and the year ADI MRL
of previous mg/kg Commodity or Remarks
evaluations see body ERL
list on p. 557-560 weight mg/kg
chlorpyrifos-methyl 0.01 *carcase meat of
1975 cattle 0.05
*cattle, fat 0.05
*cattle byproducts 0.05
*meat of chicken 0.05
*chicken, fat 0.05
*chicken byproducts 0.05
*eggs 0.05
cypermethrin *0.006 *brassica leafy
(1981) vegetables 1 Limits are for cypermethrin (sum of
*Cherries 1 isomers). All MRLs for cypermethrin
*citrus fruits 2 are provisional until 1981.
*cottonseed 0.1
*cottonseed oil
(edible) 0.2
*grapes 1
*kidney beans
(without pods) 0.05
*lettuce 2
*maize 0.05
*peas (without pods) 0.05
*peaches 2
*plums 1
*pome fruits 2
*potatoes 0.05
*rapeseed 0.2
*raspberries 0.5
*soybeans 0.05
*strawberries 0.5
*sugar beet 0.05
Pesticide
and the year ADI MRL
of previous mg/kg Commodity or Remarks
evaluations see body ERL
list on p. 557-560 weight mg/kg
cypermethrin *Sweet corn 0.05
(cont'd) *tomatoes 0.5
*wheat 0.2
demeton-S-methyl 0.005 *alfalfa fodder 5 The recommended MRLs replace the
1965, 1967, 1968 animal feed (dry) MRL recommendation for "animal feed (green)".
1973 withdrawn
*clover fodder 5
*maize fodder and
straw 5
*sorghum fodder 5
*sugar beet leaves 5
*turnip leaves 5
diazinon 0.002 *kiwi fruit 0.5
1965, 1966, 1967,
1968, 1970, 1975
dichlofluanid 0.3 blackberries 15 The temporary MRLs were recommended in
1969, 1974, 1977 (1982) cereal grains 0.1 1977 and are numerically unchanged. They
egg plants 1 are retained as temporary limits pending
peppers 2 the receipt of required residue data,
wheat straw 0.5 irrespective of the statue of the ADI.
All MRLs for dichlofluanid are
provisional until 1982.
diphenylamine 0.02 apples 5 see also FAO/WHO 1979a.
1966, 1969, 1976
edifenphos 0.003 rice (in husk) 5 Temporary ADI extended at same level. All
1976 (1981) rice (hulled) 0.1 MRLs for edifenphos are provisional until 1981.
rice (polished) 0.02
Pesticide
and the year ADI MRL
of previous mg/kg Commodity or Remarks
evaluations see body ERL
list on p. 557-560 weight mg/kg
fenbutatin oxide 0.03 *grapes 5
1977
fenitrothion 0.005 peaches 1 "wheat bran (raw)" is a replacement
1969, 1974, 1976, pears 0.5 definition for "wheat bran".
1977 *wheat bran (processed) 2
wheat bran (raw) 20
wheat flour (white) 3
fenvalerate *0.06 *alfalfa 20 All MRLs for fenvalerate are
(1982) *beans (dry) 0.5 provisional until 1982.
*beans (whole green) 1
*broccoli 2
*Brussels sprouts 2
*cabbage 2
*cabbage, chinese 1
*cauliflower 2
*celery 2
*cereal grains 5
*cherries 2
*citrus fruits 2
*cottonseed 0.2
*cottonseed oil 0.1
*cucumbers 0.2
*animal fats 0.2
*kiwi fruit 5
*lettuce 2
*milk 0.01
*milk products (fat
basis) 0.2
*peaches 2
*peanuts 0.1
Pesticide
and the year ADI MRL
of previous mg/kg Commodity or Remarks
evaluations see body ERL
list on p. 557-560 weight mg/kg
fenvelerate *pome fruits 2
(cont'd) *potatoes 0.05
*radishes 0.05
*small fruits and
berries 1
*soybeans 0.1
*squash 0.2
*sunflower seed 0.1
*sugar beets 0.05
*Sweet corn 0.05
*tomatoes 1
*wheat bran 5
*wheat flour (white) 0.2
*wheat flour
(wholemeal) 2
lindane 0.01 tomatoes 2
1966, 1967, 1968,
1969, 1970, 1973,
1974, 1975, 1977, 1978
methamidophos 0.002 *alfalfa 2 Methamidophos is a metabolite of acephate
1976 cauliflower 1 for which separate MRLs are recommended.
*citrus fruits 0.5
cucumbers 0.5
egg plants 0.1
*soybeans 0.05
sugar beets 0.05
methidathion 0.005 citrus fruits (except
1972, 1975, 1976 mandarins) 2
*mandarins 5
Pesticide
and the year ADI MRL
of previous mg/kg Commodity or Remarks
evaluations see body ERL
list on p. 557-560 weight mg/kg
omethoate 0.0005 Temporary ADI extended at same level.
1971, 1975, 1978 (1980)
parathion-methyl 0.001 Temporary ADI extended at same level.
1968, 1972, 1975 (1982)
1978
permethrin *0.03 *bean dry 0.1 Limits are for permethrin (sum of isomers).
(1981) *beans (whole green) 0.5 They are temporary pending the receipt of
*blackberries 1 adequate data on use patterns, irrespective
*broccoli 2 of the status of the ADI. All MRLs for
*Brussels sprouts 1 permethrin are provisional until 1981.
*cabbage 5
*cabbage, Chinese 5
*cabbage, savoy 5
*carrots 0.1
*cauliflower 0.5
*celery 5
*coffee beans 0.05**
*cottonseed 0.5
*cottonseed oil 0.1
*cucumbers 0.5
*currants, (black,
red, white) 2
*dewberries 1
*egg plants 1
*gherkins 0.1
*gooseberries 2
*grapes 1
*hops (dried) 50
*Japanese radish 0.1
*kale 2
Pesticide
and the year ADI MRL
of previous mg/kg Commodity or Remarks
evaluations see body ERL
list on p. 557-560 weight mg/kg
permethrin *kiwi fruit 2
(cont'd) *kohlrabi 0.1
*leeks 5
*lettuce 20
loganberries (see dewberries)
*melons 0.1
*mushrooms 0.1
*onions, spring 5
*oranges 0.5
*peas (without pod) 0.1
*peppers 1
*pome fruits 2
*potatoes 0.05**
*rape seeds 0.05**
*raspberries 1
*soybeans 0.1
*spinach 2
*squash 0.1
*stone fruits 2
*strawberries 1
*sugar beets 0.05**
*sweet corn 0.1
*tea (dried, black,
green) 20
*tomatoes 2
phosmet 0.02 kiwi fruit 15 Previous temporary ADI converted to ADI at
1976, 1978 higher level. Temporary MRLs converted to MRLs.
pirimicarb 0.01 beans (with pod) 1 MRLs for pirimicarb is provisional until 1980.
1976 (1980)
Pesticide
and the year ADI MRL
of previous mg/kg Commodity or Remarks
evaluations see body ERL
list on p. 557-560 weight mg/kg
pirimiphos-methyl 0.01 *kiwi fruit 2
1974, 1976, 1977
propargite 0.08 apples 5 MRLs for propargite are provisional until 1981.
1977, 1978 (1981) pears 5
2,4,5,-T 0.003 *apples 0.05** All MRLs for 2,4,5,-T are provisional until 1981.
1970 (1981) *apricots 0.05**
*barley 0.05**
*carcase meat 0.05**
*cereal straw 2
*eggs 0.05**
*meat by-products 0.05**
*milk 0.05**
*Oats 0.05**
*rice 0.05**
*rye 0.05**
*sugar cane 0.05**
*Wheat 0.05**
thiabendazole 0.3 strawberries 1
1970, 1971, 1972, tomatoes 2
1975, 1977
thiometon 0.003 *egg plants 0.5 Temporary ADI converted to ADI at
1969, 1973,1976 *mustard seed 0.05** lower level. Previous temporary
*rape seed 0.05** MRLs converted to MRLs.
MRLs are for the sum of thiometon, its
sulphoxide and its sulphone, determined
as thiometon sulphone and expressed
as thiometon.
Pesticide
and the year ADI MRL
of previous mg/kg Commodity or Remarks
evaluations see body ERL
list on p. 557-560 weight mg/kg
thiophanate-methyl Not considered in 1979. This entry is to
correct the erroneous entry of 10 mg/kg
as the MRL for raspberries in FAO/WHO,
1974a (Annex 1) 1974b (Annex 1) and 1978c.
The recommended MRL is 5 mg/kg. It was
correctly recorded in the text of 1974b.
PART IIa - GUIDELINE LEVELS (GLs) (NO ACCEPTABLE DAILY INTAKES)
Pesticides and
reference to Commodity GL Remarks
previous mg/kg
evaluations
see list on
p. 557-560
aminocarb *apples 5 GLs are for aminocarb only.
*peers 2
azocyclotin *apples 0.1** GLs are for the sum of azocyclotin, cyhexatin,
*egg plants 0.1** dicyclohexyltin oxide and cyclohexyltin
*grapes 2 hydroxide oxide, expressed as azocyclotin.
*kidney beans 0.2
*Strawberries 0.1**
phenothrin *cereal grains 5 GLs are for the sum of the (+)trans- and (+)-cis-isomers
*wheat bran 15 of phenothrin
triadimefon *apples 0.2 GLs are for the sum of triadimefon and 1-(4-chlorophenoxy)
*barley 0.1** -3,3-dimethyl-1-(1,2,4-triazol-1-yl)butan-2-ol
*barley straw 2 ("triadimenol").
*cucumbers 0.2
*currants, red 1
*eggs 0.1**
*grapes 2
*melons 0.5
*milk 0.1**
*oats 0.1**
*oat straw 2
*onions, spring 0.1**
*paprika 0.5
*peas
(without pod) 0.1**
*pumpkins 0.1**
PART IIa - Continued...
Pesticides and
reference to Commodity GL Remarks
previous mg/kg
evaluations
see list on
p. 557-560
triadimefon *strawberries 0.2
*sugar beets 0.1**
*sugar beet
(leaves) 0.1**
*tomato 0.5
*wheat 0.1**
*wheat straw 2
PART IIb - GUIDELINE LEVELS (GLs) FOR FUMIGANTS (NO ACCEPTABLE DAILY INTAKES)
Pesticides and
reference to
previous Commodity GL Remarks
evaluations mg/kg
see list on
p. 557 - 560
bromomethane bread and other cooked See also FAO/WHO, 1965c, 1970a,and 1972a.
1966, 1967, 1968, cereal products (1) 0.01** "Bread and other cereal products" replaces
1971 cereal grains (2) 5 "bread and other cooked cereal products".
cocoa beans (2) 5* "Cereal grains" is replacement definition for
cocoa products (1) 0.01** raw cereals.
dried fruits (2) 2
dried fruits (1) 0.01**
milled cereal products (2) 1 GL for bromomethane in milled cereal
milled cereal products (1) 0.01** products to be subjected to baking or
cooking is withdrawn.
nuts (2) 10
nuts (1) 0.01**
peanuts (2) 10
peanuts (1) 0.01**
(1) GL to apply at point of retail sale or
when offered for consumption.
carbon tetrachloride bread and other cereal
1967, 1968, 1971 products (1) 0.01** (2) GL to apply at point of entry into a
cereal grains (2) 50 country and in the case of cereal for milling,
*milled cereal products if the commodity has been freely exposed
intended for consumption to air for a period of at least 24 hours.
without cooking (3) 0.01**
(3) To comply with the GL, the cereal grain
must be selected from lots which have not
been treated with the fumigant.
PART IIb - Continued...
Pesticides and
reference to
previous Commodity GL Remarks
evaluations mg/kg
see list on
p. 557 - 560
1,2-dibromoethane bread and other cooked
1966, 1967, 1968 cereal products (1) 0.01** (4) GL to apply after a with holding period
1971 cereal grains (2) 20 of not less than 5 days. Where this period is
*citrus fruits (4) 0.5 impracticable, the fumigant should not be used.
*fruit and vegetables
(except citrus fruits (5) GL to apply after a withholding
and passion fruit) (5) 0.1 period of not less than 3 days.
*milled cereal products,
intended for consumption
without cooking (3) 0.01**
*passion fruit (4) 0.5
1,2 dichloroethane bread and other cereal
l967, 1971 products (1) 0.1**
cereal grains (2) 50
ethylene dibromide See 1,2-dibromoethane
ethylene dichloride See 1,2-dichloroethane
methyl bromide See bromomethane
ANNEX II
PREVIOUS FAO AND WHO DOCUMENTATION
FAO/WHO (1958) - Procedures for the testing of intentional food
additives to establish their safety for use. Second report of the
Joint FAO/WHO Expert Committee on Food Additives. FAO Nutrition
Meetings Report Series, No. 17: WHO Technical Report Series, No. 144.
FAO/WHO (1961) - Evaluation of the carcinogenic hazards of food
additives. Fifth Report of the Joint FAO/WHO Expert Committee on Food
Additives. FAO Nutrition Meetings Report Series, No. 29; WHO
Technical Report Series, No. 220.
FAO/WHO (1962) - Principles governing consumer safety in relation to
pesticide residues. Report of a meeting of a WHO Expert Committee on
Pesticide Residues held jointly with the FAO Panel of Experts on the
Use of Pesticides in Agriculture. FAO Plant Production and Protection
Division Report, No. PL:1961/11; WHO Technical Report Series, No. 240.
FAO/WHO (1964) - Evaluation of the toxicity of pesticide residues in
food; report of a Joint Meeting of the FAO Committee on Pesticides in
Agriculture and the WHO Expert Committee on Pesticide Residues. FAO
Meeting Report, No. PL:1963/13; WHO/Food Add./23 (1964).
FAO/WHO (1965a) - Evaluation of the toxicity of pesticide residues in
food. Report of the Second Joint Meeting of the FAO Committee on
Pesticides in Agriculture and the WHO Expert Committee on Pesticide
Residues. FAO Meeting Report, No. PL:1965/10; WHO Food Add./26.65.
FAO/WHO (1965b) - Evaluation of the toxicity of pesticide residues in
food. FAO Meeting Report, No. PL:1965/10/1; WHO Food Add./27.65.
FAO/WHO (1965c) - Evaluation of the hazards to consumers resulting
from the use of fumigants in the protection of food. FAO Meeting
Report, No. PL:1965/10/2; WHO Food Add./28.65.
FAO/WHO (1967a) - Pesticide residues in food. Joint report of the FAO
Working Party on Pesticide Residues and the WHO Expert Committee on
Pesticide Residues. FAO Agricultural Studies, No. 73; WHO Technical
Report Series, No. 370.
FAO/WHO (1967b) - Evaluation of some pesticide residues in food. FAO:
PL/CP/15; WHO Food Add./67.32.
FAO/WHO (1968a) - Pesticide residues. Report of the 1967 Joint Meeting
of the FAO Working Party and the WHO Expert Committee. FAO Meeting
Report, No. PL:1967/M311; WHO Technical Report Series, No. 391.
FAO/WHO (1968b) - 1967 evaluation of some pesticide residues in food.
FAO PL:1967/M/ll; WHO Food Add./68.30.
FAO/WHO (1969a) - Pesticide residues in food. Report of the 1968 Joint
Meeting of the FAO Working Party of Experts on Pesticide Residues and
the WHO Expert Committee on Pesticide Residues. FAO Agricultural
Studies, No. 78; WHO Technical Report Series, No. 417.
FAO/WHO (1969b) - 1968 evaluation of some pesticide residues in food.
FAO PL:1968/M/9/1; WHO Food Add./69.35.
FAO/WHO (1970a) - Pesticide residues in food. Report of the 1969 Joint
Meeting of the FAO Working Party of Experts on Pesticide Residues and
the WHO Expert Group on Pesticide Residues. FAO Agricultural Studies,
No. 84; WHO Technical Report Series, No. 458.
FAO/WHO (1970b) - 1969 evaluations of some pesticide residues in food.
FAO PL:1969/M/17/1; WHO Food Add./70.38.
FAO/WHO (1971a) - Pesticide residues in food. Report of the 1970 Joint
Meeting of the FAO Working Party of Experts on Pesticide Residues and
the WHO Expert Group on Pesticide Residues. FAO Agricultural Studies,
No. 87; WHO Technical Report Series, No. 474.
FAO/WHO (1971b) - 1970 evaluations of some pesticide residues in food.
AGP:1970/M312/1; WHO Food Add./71.42.
FAO/WHO (1972) - Toxicological evaluation of certain food additives
with a review of general principles and of specifications. Seventeenth
report of the Joint FAO/WHO Expert Committee on Food Additives. FAO
Meeting Series No. 52; WHO Technical Report Series, No. 539.
FAO/WHO (1972a) - Pesticide residues in food. Report of the 1971 Joint
Meeting of the FAO Working Party of Experts on Pesticide Residues and
the WHO Expert Committee on Pesticide Residues. FAO Agricultural
Studies, No. 88; WHO Technical Report Series, No. 502.
FAO/WHO (1972b) - 1971 evaluations of some pesticide residues in food.
AGP: 1971/M/9/1; WHO Pesticide Residues Series, No. 2.
FAO/WHO (1973a) - Pesticide residues in food. Report of the 1972 Joint
Meeting of the FAO Working Party of Experts on Pesticide Residues and
of the WHO Expert Committee on Pesticide Residues. FAO Agricultural
Studies, No. 90; WHO Technical Report Series, No. 525.
FAO/WHO (1973b) - 1972 evaluations of some pesticide residues in food.
AGP:1972/M/9/1; WHO Pesticide Residue Series, No. 2.
FAO/WHO (1974a) - Pesticide residues in food. Report of the 1973 Joint
Meeting of the FAO Working Party of Experts on Pesticide Residues and
the WHO Expert Committee on Pesticide Residues. FAO Agricultural
Studies, No. 93; WHO Technical Report Series, No. 545.
FAO/WHO (1974b) -1973 evaluations of some pesticide residues in food.
AGP:1973/M/9/1; WHO Pesticide Residues Series, No. 3.
FAO/WHO (1974c) - Report of the seventh session of the Codex Committee
on Pesticide Residues (document ALINORM 74/24).
FAO/WHO (1974d) - Toxicological evaluation of certain food additives
with a review of general principles and of specifications. FAO
Nutrition Meeting Report Series, No. 53; WHO Technical Report Series,
No. 539.
FAO/WHO (1974e) - The use of mercury and alternative compound as seed
dressings. Report of a Joint FAO/WHO Meeting. FAO Agricultural
Studies, No. 95; WHO Technical Report Series, No. 555.
FAO/WHO (1975a) - Pesticide residues in food. Report of the 1974 Joint
Meeting of the FAO Working Party of Experts on Pesticide Residues and
the WHO Expert Committee on Pesticide Residues. FAO Agricultural
Studies, No. 97; WHO Technical Report Series, No. 574.
FAO/WHO (1975b) - 1974 evaluations of some pesticide residues in food.
AGP:1974/M/11; WHO Pesticide Residues Series, No. 4.
FAO/WHO (1975c) - Report of the eighth session of the Codex Committee
on Pesticide Residues (document ALINORM 76/24).
FAO/WHO (1976a) - Pesticide residues in food. Report of the 1975 Joint
Meeting of the FAO Working Party of Experts on Pesticide Residues and
the WHO Expert Committee on Pesticide Residues, FAO Plant Production
and Protection Series, No. 1; WHO Technical Report Series, No. 592.
FAO/WHO (1976b) - 1975 evaluations of some pesticide residues in food.
AGP:1975/M/13; WHO Pesticide Residues Series, No. 5.
FAO/WHO (1977a) - Pesticide residues in food. Report of the 1976 Joint
Meeting of the FAO Panel of Experts on Pesticide Residues and the
Environment and the WHO Expert Group on Pesticide Residues. FAO Food
and Nutrition Series, No. 9; FAO Plant Production and Protection
Series, No. 8; WHO Technical Report Series, No. 612.
FAO/WHO (1977b) - 1976 evaluations of some pesticide residues in food.
AGP:1977/M/14.
FAO/WHO (1978a) - Pesticide residues in food. Report of the 1977 Joint
Meeting of the FAO Panel of Experts on Pesticide Residues and the
Environment and the WHO Expert Group on Pesticide Residues. FAO Plant
Production and Protection Paper 10 Rev.
FAO/WHO (1978b) - 1977 evaluations of some pesticide residues in food.
FAO Plant Production and Protection Paper 10 Sup.
FAO/WHO (1978c) - Index of Documentation and Summary of
Recommendations as at January 1978. FAO AGP:1978/M/5.
FAO/WHO (1979a) - Pesticide residues in food. Report of the 1978 Joint
Meeting of the FAO Panel of Experts on Pesticide Residues in Food and
the Environment and the WHO Expert Group on Pesticide Residues. FAO
Plant Production and Protection Paper 15.
FAO/WHO (1979b) - 1978 evaluations of some pesticide residues in
food. FAO Plant Production and Protection Paper 15 Sup.
WHO (1967) - Procedures for investigating intentional and
unintentional food additives. Report of a WHO Scientific Group. WHO
Technical Report Series, No. 348.
WHO (1974) - Assessment of the carcinogenicity and mutagenicity of
chemicals. Report of a WHO Scientific Group. WHO Technical Report
Series, No. 546.