N,N-dimethylthiourea |

Last updated: 24/02/2024
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(Also known as: DMTU; methylthiourea) |
The following alerts are based on the data in the tables below. An absence of an alert does not imply the substance has no implications for human health, biodiversity or the environment but just that we do not have the data to form a judgement.
Environmental fate |
Ecotoxicity |
Human health |
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A significant environmentally relevant impurity of metam and its variants with no activity against tagret pests |
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Not applicable |
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- |
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Not applicable |
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Not approved |
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No UK approval for use as a pesticide |
EC Regulation 1107/2009 (repealing 91/414) |
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Not approved |
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Not applicable |
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Not applicable |
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Not applicable |
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No |
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ATAustria |
BEBelgium |
BGBulgaria |
CYCyprus |
CZCzech Republic |
DEGermany |
DKDenmark |
EEEstonia |
ELGreece |
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ESSpain |
FIFinland |
FRFrance |
HRCroatia |
HUHungary |
IEIreland |
ITItaly |
LTLithuania |
LULuxembourg |
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LVLatvia |
MTMalta |
NLNetherlands |
PLPoland |
PTPortugal |
RORomania |
SESweden |
SISlovenia |
SKSlovakia |
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None |
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C₃H₈N₂S |
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CNC(=S)NC |
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- |
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VLCDUOXHFNUCKK-UHFFFAOYSA-N |
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InChI=1S/C3H8N2S/c1-4-3(6)5-2/h1-2H3,(H2,4,5,6) |
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Yes |
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Other substance |
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Pesticide impurity |
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Unclassified substance |
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- |
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- |
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- |
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Not applicable |
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61805-96-7 |
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208-588-2 |
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- |
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- |
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2723631 |
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104.18 |
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1,3-dimethylthiourea |
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1,3-dimethylthiourea |
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N,N-dimethylthiourea |
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- |
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- |
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Not applicable |
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Not applicable |
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Not applicable |
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Not applicable |
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- |
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- |
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581980 |
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High |
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- |
- |
- |
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- |
- |
- |
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61 |
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source |
- |
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- |
- |
- |
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27 |
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source |
- |
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5.89 X 10-01 |
Calculated |
- |
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-0.23 |
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Low |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
- |
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912000 |
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Highly volatile. If applied directly to plants or soil, drift is a concern & mitigation is advisable |
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0.149 |
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Moderately volatile |
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- |
- |
- |
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- |
- |
- |
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Neutral soln: 238nm=12700, 290nm=161 Basic soln: 238nm=12800, 290=368 Acidic soln: 238nm=9910, 290nm=415 |
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- |
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- |
- |
- |
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- |
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13 |
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Non-persistent |
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4.84 |
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Non-persistent |
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- |
- |
- |
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13.1 |
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Non-persistent |
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- |
- |
- |
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- |
- |
- |
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EFSA 2023 dossier (metam): Lab studies DT₅₀ (normalised) range 1.92-45.2 days, DT₉₀ range (measured) 7.08-19.22 days with 1 outlier DT₉₀ 925 days; Soils=8 |
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- |
- |
- |
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- |
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- |
- |
- |
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- |
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- |
- |
- |
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- |
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- |
- |
- |
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- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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As this parameter is not normally measured directly, a surrogate measure is used: ‘Photochemical oxidative DT₅₀’. Where data is available, this can be found in the Fate Indices section below. |
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- |
Soil adsorption and mobility |
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- |
- |
- |
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- |
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- |
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0.15 |
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Very mobile |
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8.1 |
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0.8 |
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EFSA 2023 (metam) dossier: Kf range 0.097-0.245 mL g⁻¹, Kfoc range 5.23-22.5 mL g⁻¹, 1/n range 0.7-0.94, Soils=9 |
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No |
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2.12 |
Calculated |
Transition state |
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4.42 X 10-03 |
Calculated |
- |
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- |
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Low |
Calculated |
- |
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Very mobile |
Calculated |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
None
Terrestrial ecotoxicology |
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- |
- |
- |
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- |
- |
- |
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- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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95 |
Eisenia fetida |
Moderate |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
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- |
- |
- |
- |
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- |
- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
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- |
- |
- |
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- |
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- |
- |
- |
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- |
- |
- |
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103.4 |
Aphidius rhapalosiphi |
- |
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179 |
Typhlodromus pyri |
- |
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- |
- |
- |
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> 96.0 |
Oncorhynchus mykiss |
Moderate |
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- |
- |
- |
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- |
- |
- |
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28.4 |
Daphnia magna |
Moderate |
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- |
- |
- |
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- |
- |
- |
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> 40 |
Folsomia candida EC₅₀ |
Moderate |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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> 104 |
Pseudokirchneriella subcapitata |
Low |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
HUMAN HEALTH AND PROTECTION |
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- |
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- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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- |
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- |
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EU MRL pesticide database |
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- |
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- |
- |
- |
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- |
- |
- |
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- |
- |
- |
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Carcinogen |
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Endocrine disruptor |
No data found |
A0 A = Chromosome aberration (EFSA database) 0 = No data ; B0 B = DNA damage/repair (EFSA database) 0 = No data ; C0 C = Gene mutation (EFSA database) 0 = No data ; D0 D = Genome mutation (EFSA database) 0 = No data ; E0 E = Unspecified genotoxicity type (miscellaneous data source) 0 = No data |
No data found |
Reproduction / development effects |
Acetyl cholinesterase inhibitor |
Neurotoxicant |
No data found |
No data found |
No data found |
Respiratory tract irritant |
Skin irritant |
Skin sensitiser |
No data found |
No data found |
No data found |
Eye irritant |
Phototoxicant |
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No data found |
No data found |
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No information available |
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No information available |
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- |
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- |
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- |
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- |
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- |
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N,N-dimethylthiourea |
|
- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
Record last updated: |
24/02/2024 |
Contact: |
aeru@herts.ac.uk |
Please cite as: |
Lewis, K.A., Tzilivakis, J., Warner, D. and Green, A. (2016) An international database for pesticide risk assessments and management. Human and Ecological Risk Assessment: An International Journal, 22(4), 1050-1064. DOI: 10.1080/10807039.2015.1133242 |