Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.
Monazzam MR et al, (April 2014) Sleep quality and general health status of employees exposed to extremely low frequency magnetic fields in a petrochemical complex, J Environ Health Sci Eng
No Effects Found
Authors not listed · 2014
Petrochemical workers exposed to substation EMFs showed 61% sleep disorder rates despite 'safe' exposure levels.
Plain English Summary
Summary written for general audiences
Researchers studied 40 petrochemical workers exposed to extremely low frequency magnetic fields from electrical substations, comparing their sleep quality and general health to unexposed controls. While 61% of exposed workers had sleep disorders and 28% showed poor health compared to just 4.5% sleep issues in controls, the study found no direct correlation between EMF exposure levels and health problems.
Cite This Study
Unknown (2014). Monazzam MR et al, (April 2014) Sleep quality and general health status of employees exposed to extremely low frequency magnetic fields in a petrochemical complex, J Environ Health Sci Eng.
Show BibTeX
@article{monazzam_mr_et_al_april_2014_sleep_quality_and_general_health_status_of_employees_exposed_to_extremely_low_frequency_magnetic_fields_in_a_petrochemical_complex_j_environ_health_sci_eng_ce1323,
author = {Unknown},
title = {Monazzam MR et al, (April 2014) Sleep quality and general health status of employees exposed to extremely low frequency magnetic fields in a petrochemical complex, J Environ Health Sci Eng},
year = {2014},
doi = {10.1186/2052-336X-12-78},
}Quick Questions About This Study
Yes, this study found 61% of petrochemical substation workers had sleep disorders compared to only 4.5% of unexposed controls, despite EMF levels below current safety standards.
The measured EMF levels were below limits set by the American Conference of Industrial Hygienists, yet workers still showed significantly higher rates of sleep and health problems.
The study found 28% of exposed workers had poor general health status and 61% suffered from sleep disorders, while control workers remained largely unaffected.
This petrochemical complex study suggests yes, with exposed workers showing dramatically higher sleep disorder rates even when EMF levels met current occupational safety standards.
No, but this study found the majority were affected: 61% had sleep disorders and 28% showed poor health, compared to minimal problems in unexposed workers.