Parathion

CAS RN:56-38-2

Other Preventive Measures

At the end of the work day the protective clothes should be removed and a shower taken before returning to street clothes. If clothing becomes contaminated with parathion, it should be immediately removed and a shower taken without delay. ... Smoking or eating should not be permitted when handling parathion until all outer working clothing is removed and the hands and face are washed.
Hydrogen peroxide or hypochlorous acid (dilute) should be available to decontaminate badly contaminated clothing before it /is to be/ laundered.
If material is not on fire & is not involved in fire; keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. ... Avoid breathing vapors. Keep upwind. Avoid bodily contact with the material. Wear appropriate chemical protective clothing. Do not handle broken packages without protective equipment.
Where there is any possibility of exposure of an employee's body to parathion, facilities for quick drenching of the body should be provided within the immediate work area for emergency use. ... Clothing which has had any possibility of being contaminated with parathion should be placed in closed containers for storage until it can be discarded, or until provision is made for the removal of parathion from the clothing. If the clothing is to be laundered, or otherwise cleaned to remove the parathion, the person performing the operation should be informed of parathion's hazardous properties. ... Where there is any possibility that employee's eyes may be exposed to parathion, an eye wash fountain should be provided within the immediate work area for emergency use.
Good industrial hygiene practices recommend that engineering controls be used to reduce environmental concentrations to the permissible exposure level. However, there are some exceptions where respirators may be used to control exposure. Respirators may be used when engineering and work practice controls are not technically feasible, when such controls are in the process of being installed, or when they fail and need to be supplemented. Respirators may also be used for operations which require entry into tanks, or closed vessels, and in emergency situations. ... In addition to respirator selection, a complete respiratory protection program should be instituted which includes regular training, maintenance, inspection, cleaning, and evaluation.
SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.
Attempt to stop leak if without undue personnel hazard. Use water spray to knock down vapors. ... Wash away any material which may have contacted the body with copious amounts of water or soap and water. If material leaking (not on fire) consider evacuation from downwind area based on amount of material spilled, location and weather conditions. /Parathion and compressed gas mixture; parathion dry mixture/
SRP: Contaminated protective clothing should be segregated in such a manner so that there is no direct personal contact by personnel who handle, dispose, or clean the clothing. Quality assurance to ascertain the completeness of the cleaning procedures should be implemented before the decontaminated protective clothing is returned for reuse by the workers. Contaminated clothing should not be taken home at end of shift, but should remain at employee's place of work for cleaning.
The worker should immediately wash the skin when it becomes contaminated.
Work clothing that becomes wet or significantly contaminated should be removed and replaced.
Workers whose clothing may have become contaminated should change into uncontaminated clothing before leaving the work premises.
Special aircraft should preferably be used for spraying or dusting toxic organophosphorus pesticides. ... Aerial spraying or dusting gives rise to clouds which spread over larger surfaces than clouds produced by ground application. Aerial spraying should therefore be carried out on windless days only. Residential areas, water supply sources, etc must be avoided. ... When aircraft approaches, signalmen /guiding the aircraft/ should leave the windward side. ... The local population should be informed about the site & time of aerial pesticide treatment. Access of unauthorized persons & especially children to the area to be treated must be ... forbidden. Warning signs should be placed at the limits of the area. Ground spraying must be carried out with compressed-air spraying equipment towed by tractors with closed cabs. /Organophosphorus pesticides/
Small packages of pesticides are preferable for individual application in order to limit the quantities to be weighed & metered. A special vessel with long stirring rod for dilution & suspension of the poison must be available in order to reduce manual handling to a minimum. The strict observance of hygiene rules--no smoking & no food intake during work. Thorough washing with soap after work, changing protective clothing before going home--is of utmost importance. /Organophosphorus pesticides/
Containers ... should be cleaned with a suspension of bleaching powder in water or with other alkaline soln after soaking for 24 hr and then be rinsed with hot water. /Organophosphorus pesticides/
If material not on fire and not involved in fire: Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Use water spray to knock-down vapors. /Organophosphorus pesticides, liquid, NOS/
Personnel protection: Keep upwind. Wear appropriate chemical protective gloves, boots and goggles. Do not handle broken packages unless wearing appropriate personal protective equipment. Wear positive pressure self-contained breathing apparatus when fighting fires involving this material. /Organophosphorus pesticides, liquid, NOS/
If material not on fire and not involved in fire: Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. /Organophosphorus pesticides, solid, NOS/
Personnel protection: Avoid breathing dusts, and fumes from burning material. Keep upwind. Avoid bodily contact with the material. Wear appropriate chemical protective gloves, boots and goggles. Do not handle broken packages unless wearing appropriate personal protective equipment. Wash away any material which may have contacted the body with copious amounts of water or soap and water. Wear positive pressure self-contained breathing apparatus when fighting fires involving this material. If contact with the material anticipated, wear appropriate protective clothing. /Organophosphorus pesticides, solid, NOS/
Parathion and possibly other organophosphate insecticide residues may persist in clothing, despite repeated laundering. /Organophosphates and related compounds/
Find more information on this substance at: Hazardous Substances Data Bank , TOXNET , PubMed