Vapour inhalation - Low toxicity. May cause irritation. LC50 - > mg/L air (rat).
Chronic oral toxicity NOEL - ppm for two years.
Not mutagenic or teratogenic (i.e. does not cause reproductive problems).
Atrazine has been classed as a suspected carcinogen.
Other Species -
Birds - toxicity.
Fish - toxicity - Slightly to moderately toxic to fish. LC50 > ppm.
Invertebrates - toxicity.
Bees - toxicity.
25 TOXICITY SYMPTOMS:
Conductivities, mild to moderate corneal clouding, moderate iritis.
26 FIRST AID:
Contact a doctor or Poisons Information Centre on 13 11 26.
If Swallowed - Contact a doctor immediately. If more than 15 minutes from medical help, induce vomiting preferably with Ipecac Syrup APF
If on Skin - Wash skin thoroughly with soap and water.
If in Eyes - Flush with water for 15 minutes then see a doctor.
If Inhaled - Remove patient from contaminated area to fresh air.
18 PROTECTIVE CLOTHING:
Cotton overalls, washable hat, elbow length PVC gloves and goggles.
27 ENVIRONMENTAL FATE:
It has a half life in soil of some months.
It has an EPA classification for soil mobility that ranges from
Ground water contamination. Atrazine may contaminate ground water.
Replanting intervals - Long.
Accumulation in milk and tissues.
Water solubility at 25 C. - ppm at pH ;
Oil solubility -
Octanol:Water ratio at 25 C. - at pH 5;
Vapour Pressure at 25 C. - Low.
Dissociation constant - pKa
Melting point - C.
Molecular weight -
Half life in water - days at pH5 and 35 C.
Ashton, F.M. and Crafts, A.S. (1981) Mode of Action of Herbicides. (Wiley-Interscience publication).
Kearney, P.C. and Kaufman, D.D. (1976). Herbicides. Chemistry, degradation and mode of action. Vol 1 & 2.
4. Poison Schedule : S5
6. Product colour : White. No odour.
7. Product Flammability : Fine dust dispersed in air may ignite if exposed to high temperature ignition source.
8. Dangerous Goods Class : Not a dangerous good.
9. Shelf Life : Long.
12. Effect of Soil Texture on Herbicide : Use higher rates on light soils in high rainfall regions and heavy soils everywhere. Don't use on sandy soils that are low in organic matter.
13. Effect of Soil pH on Herbicide :
14. Effect of Soil Organic Matter on Herbicide : Use higher rate on soils with high organic matter contents. Don't use on sandy soils that are low in organic matter.
15. Mode of Action : Inhibitor of photosynthesis at photosystem 2.
16. Application Timing : Pre and Post emergent.
22. Soil Moisture at Application :
DRY - Reduced effectiveness.
MOIST - Ideal
WATERLOGGED - Don't use on poorly drained areas.
23. Frost Effects :
24. Frost Free Days Required After Application :
25. Effect of Application Water Quality on Herbicide :
Saline Water -
Soil Colloids -
26. Recommended Water Volume : 100-400 L/ha for booms. At least 30 L/ha for aerial application. Not applicable for granules.
27. Nozzle Type : Flat fan.
28. Recommended Nozzle Pressure : 200-300 kPa.
29. Recommended Filter Size : Not applicable.
30. Recommended Wetter - None recommended.
31. Other Additives : None recommended.
32. Rain Fastness : 6 hours.
33. Time Interval Before Effect is Noticed : Can be long in cool weather.
34. Weed Symptoms : Yellowing followed by death.
36. Withholding Period : Long.
37. Plant-Back Period : Long.
38. Spray Tank Clean-Up : Drain tank and flush with clean water for a minimum of 10 minutes. Fill the tank with clean water and use a boom cleaning agent. Remove the nozzles and screens and clean separately.
39. Other Comments : Continuously agitate spray solution.
Numbered data adapted from "Crop Herbicide Information"
by A.J. Chambers.
Collated by HerbiGuide. For more information see www.herbiguide.com.au or phone 08 98444064.