SUMMARY : CASES 291-003-01, 291-003-02, 291-009- 01, 291-009-02, 291-009-03
Lightning strikes killed two farm workers who were picking and hoeing lettuce during a thunderstorm. They worked on crews about fifteen miles apart. One crew was leaving the field because of the lightning, when one of the last workers out was struck by a lightning bolt. He died immediately of a heart attack.
The second crew had taken shelter in a bus during the storm, but when the rain stopped they returned to the field. A worker was bent over hoeing lettuce when he was struck. The lightning strikes continued, and paramedics had trouble reaching the worker and getting him to the ambulance. The worker died in the hospital from burns.
How could these deaths have been prevented?
NURSE staff identified two lightning-related deaths on two different lettuce farms in California through newspaper and weather reports in September, 1991. The two deaths occurred in two separate cloud to ground lightning strikes in locations about 15 miles apart. The strikes happened about 35 minutes apart during a thunderstorm in which over 2,000 strikes to ground, during a 24 hour period, were recorded by the local gas and electric company in the eastern edge of a valley surrounded by low mountains (see attached maps). Lettuce field workers (pickers and hoers) working for two different employers (both farm labor contractors) were involved in these two incidents. A Senior Safety Engineer, a nurse, and an epidemiologist from the NURSE project discussed the incident with one of the farm labor contractors on February 7, 1992. The other farm labor contractor declined to discuss the incident due to pending litigation. The California Occupational Safety and Health Administration (Cal/OSHA) was notified of both deaths by the local emergency medical services who responded. Cal/OSHA conducted investigations of both fatalities.
Farm labor contractors are used by some farm owners and operators of large corporate farms in California to recruit, train and manage workers. Information on one farm labor contractor's safety program (Incident 1) was reviewed by Cal/OSHA on September 9, 1991 and was found to be in compliance with Title 8 California Code of Regulations 3203 -- Injury and Illness Prevention Program. (As of July 1, 1991 the State of California requires all employers to have a written seven point injury prevention program: designated safety person responsible for implementing the program; mode for ensuring employee compliance; hazard communication; hazard evaluation through periodic inspections; injury investigation procedures; intervention process for correcting hazards; and a health and safety program.) This farm labor contractor employs approximately 110 casual workers and 100 seasonal workers.
On September 6, 1991 at approximately 8:20 a.m., during a period of rain accompanied by occasional lightning, there was a lightning strike in a lettuce field. At this time most of the workers had already left the field at the request of the foreman due to the weather conditions (rain and lightning) and because the field was extremely muddy. However, three workers were still in the process of leaving the field when one worker was struck by lightning; co-workers noted he was unresponsive after being struck. The local emergency medical services responded to the 911 call from the field crew.
Upon arrival (approximately 20 minutes after the injury occurred) they found a 22 year old Hispanic male in cardiac arrest after being struck by a lightning bolt which hit the left side of his head, as indicated by singed hair, second degree burns extending from the top of his head to his ear, and a focal third degree burn which penetrated his top left ear, passed through his body, and exited at the midline of his lower abdomen as indicated by a half inch diameter zone of third degree burns and charring of the skin. The fire department and county EMS paramedics initiated CPR, and transported him (approximately 26 minutes later due to a lengthy extrication) to the local emergency department where he was pronounced dead. Two female workers who were walking beside him were knocked down by the lightning. They were transported by EMS and treated at the local emergency department. They were not admitted, due to the minor nature of their injuries.
The cause of death reported by the coroner was cardiac arrest secondary to lightning strike.
On September 6, 1991 at approximately 7:20 a.m., during a period of rain accompanied by lightning, there was a lightning strike in a lettuce field where workers were hoeing fields to remove weeds from between the lettuce rows. The hoeing crews had initially been called out of the fields by the foreman until the rain stopped. At this time the crews put on rain gear and went back out and resumed hoeing. The fatally injured worker (who was working for the first time for this farm labor contractor) was bent over hoeing with the crest of his body about four feet above the ground. He was struck by lightning as indicated by extensive first and second degree burns over the right side of his face, neck, front and back chest, front and back legs covering approximately 50-60% of his total body surface. (Another worker was injured when he was struck by the hoe used by the victim which was involuntarily thrown from the victim's hands during the lightning strike. He was transported to the emergency department of a local hospital, treated, and released.) Upon arrival of the county EMS paramedics which responded to a 911 call (within 10 minutes of injury) from the field crew, they noted a 20 year old Hispanic male who was in cardiac arrest. Due to the continuing lightning strikes in the field, the extrication of the injured worker was lengthy. He was initially transported (undergoing CPR enroute) to a local hospital emergency department where he received fluid resuscitation, was stabilized and was subsequently transported via ambulance and admitted to the burn unit of the regional trauma center in the neighboring county. He then went into cardiac arrest but was successfully resuscitated. During an exploratory laparotomy he went into cardiac arrest again, and was successfully resuscitated again. He was then placed in the burn unit of the trauma center where he suffered a third cardiac arrest from which he was not resuscitated successfully.
The cause of death as reported by the coroner was burns over 50-60% of body surface due to lightning strikes accompanied by extensive hemorrhagic myocardial damage, focal intracranial hemorrhage, massive congestion and edema of his lungs and brain, and visceral organ congestion.PREVENTION STRATEGIES
For further information concerning this incident or other agriculture-related injuries, please contact:NURSE Project
2151 Berkeley Way, Annex 11
Berkeley, California 94704
1111 Fulton Mall, Suite 212
Fresno, California 93721
1000 South Main St., Suite 306
Salinas, California 93901
Publication #: CDHS(COHP)-FI-92-005-04
This document was extracted from a series of the Nurses Using Rural Sentinal Events (NURSE) project, conducted by the California Occupational Health Program of the California Department of Health Services, in conjunction with the National Institute for Occupational Safety and Health. Publication date: May 1992.
The NURSE (Nurses Using Rural Sentinel Events) project is conducted by the California Occupational Health Program of the California Department of Health Services, in conjunction with the National Institute for Occupational Safety and Health. The program's goal is to prevent occupational injuries associated with agriculture. Injuries are reported by hospitals, emergency medical services, clinics, medical examiners, and coroners. Selected cases are followed up by conducting interviews of injured workers, co-workers, employers, and others involved in the incident. An on-site safety investigation is also conducted. These investigations provide detailed information on the worker, the work environment, and the potential risk factors resulting in the injury. Each investigation concludes with specific recommendations designed to prevent injuries, for the use of employers, workers, and others concerned about health and safety in agriculture.
Disclaimer and Reproduction Information: Information in NASD does not represent NIOSH policy. Information included in NASD appears by permission of the author and/or copyright holder. More