Latex condom deterioration accelerated by environmental factors: I. Ozone
L J Clark1, R P Sherwin, R F Baker
1Department of Microbiology, University of Southern California School of Medicine, Los Angeles 90033.
Contraception
|March 1, 1989
Summary
Ozone exposure significantly damages latex condoms, reducing their strength by 44% after 48 hours. This highlights the need to study protective packaging and lubricants for condom durability.
Area of Science:
- Materials Science
- Environmental Science
- Public Health
Background:
- Latex condoms are crucial for preventing sexually transmitted infections and unintended pregnancies.
- Environmental factors like air pollution may affect condom integrity.
- Ozone is a common component of urban air pollution.
Purpose of the Study:
- To investigate the impact of ozone exposure on the structural integrity and mechanical strength of latex condoms.
- To quantify the deterioration of latex condoms under simulated urban smog conditions.
Main Methods:
- Commercial non-lubricated latex condoms were exposed to 0.3 ppm ozone in an environmental chamber.
- Scanning electron microscopy (SEM) was used to observe surface changes.
- Mechanical testing measured the air pressure and volume required to burst the condoms.
Main Results:
- SEM revealed surface cratering on latex condoms after 24 hours of ozone exposure.
- After 48 hours, the bursting pressure of ozone-exposed condoms decreased by 44% compared to controls.
- Significant loss of mechanical strength was observed with prolonged ozone exposure.
Conclusions:
- Ozone exposure accelerates the deterioration of latex condoms.
- The findings suggest that environmental factors can compromise condom effectiveness.
- Further research is needed on the role of packaging and lubricants in protecting condoms from environmental degradation.
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