Benzene - Decontamination and First Aid
Important Notes
- Ambulance staff, paramedics and emergency department staff treating chemically-contaminated casualties should be equipped with Department of Health approved, gas-tight (Respirex) decontamination suits based on EN466:1995, EN12941:1998 and prEN943-1:2001, where appropriate.
- Decontamination should be performed using local protocols in designated areas such as a decontamination cubicle with adequate ventilation.
- Flammability warning: prevent exposure to all sources of ignition such as naked flames, electrical equipment, oxidising chemicals and the smoking of tobacco products.
Dermal exposure(a)
- Remove patient from exposure.
- The patient should remove all clothing and personal effects.
- Double-bag soiled clothing and place in a sealed container clearly labelled as a biohazard.
- Gently blot away any adherent liquid from the patient.
- Wash hair and all contaminated skin with copious amounts of water (preferably warm) and soap for at least 10-15 minutes. Decontaminate open wounds first and avoid contamination of unexposed skin.
- Pay special attention to skin folds, axillae, ears, fingernails, genital areas and feet.
- Observe for at least 4 hours after exposure.
- Monitor pulse, blood pressure, cardiac rhythm, GCS and respiratory rate. Perform 12 lead ECG.
- Apply other measures according to the patient's clinical condition.
Ocular exposure(b)
- Remove patient from exposure.
- Remove contact lenses if necessary and immediately irrigate the affected eye thoroughly with water or 0.9% saline for at least 10-15 minutes.
- Patients with corneal damage and those whose symptoms do not resolve rapidly should be referred for ophthalmological assessment.
Inhalation(c)
- Remove patient from exposure.
- Ensure a clear airway and adequate ventilation.
- Give oxygen to symptomatic patients.
- Observe for at least 4 hours after exposure.
- Monitor pulse, blood pressure, cardiac rhythm, GCS and respiratory rate. Perform 12 lead ECG.
- If the patient has clinical features of bronchospasm treat conventionally with nebulised bronchodilators.
- Apply other measures as indicated by the patient's clinical condition.
Ingestion(d)
- Ensure a clear airway and adequate ventilation.
- Give oxygen to symptomatic patients.
- Gut decontamination is contraindicated because this may increase the risk of aspiration.
- Observe for at least 4 hours after exposure.
- Monitor pulse, blood pressure, cardiac rhythm, GCS and respiratory rate. Perform 12 lead ECG.
- Apply other measures as indicated by the patient's clinical condition.
References:
TOXBASE - http://www.toxbase.org
a. TOXBASE: Benzene - skin exposure, 2006.
b. TOXBASE: Chemicals splashed or sprayed into the eyes, 2007.
c. TOXBASE: Benzene - inhalation, 2006.
d. TOXBASE: Benzene - ingestion, 2006.
Health Effects Toxicological Overview Key Points
Prepared by R P Chilcott
CHAPD HQ, HPA
2008
Version 3
This document will be reviewed not later than 3 years, or sooner if substantive evidence becomes available.
Last reviewed: 15 October 2008