Iranian Journal of Toxicology
مجله سم شناسی و مسمومیتهای ایران
IJT
Medical Sciences
http://ijt.arakmu.ac.ir
1
admin
2008-2967
2251-9459
8
10.61186/ijt
14
8888
13
en
jalali
1386
6
1
gregorian
2007
9
1
1
3
online
1
fulltext
en
Exposure to Formaldehyde during Sterilization in Some Manufactures and Assessing Its Absorption by Zeolites
Exposure to Formaldehyde during Sterilization in Some Manufactures and Assessing Its Absorption by Zeolites
عمومى
General
پژوهشي
Research
<span style="font-weight: bold">Background: </span>Formaldehyde is one of the most serious air contaminant that can be found everywhere. Some of the source of formaldehyde include product of building materials, decorated materials, cigarette smoke, etc. Aldehydes compounds especially formaldehyde are used as disinfectants for sterilization in different industries. In this study we measured formaldehyde workplace exposure with NIOSH method in some factories. The NaY zeolite absorption capacity of formaldehyde in different concentration was also assessed.
<br><span style="font-weight: bold">Method & materials:</span> Samples of workplace airborne formaldehyde vapor were taken from 24 workplaces with 159 exposed workers. Of these samples, 11 workplaces were chosen from pharmaceutical companies, 5 workplaces from detergent manufacturing plants and 4 workplaces from poultry Farm Companies. <br>
<span style="font-weight: bold">Result: </span>The results show the mean concentration of formaldehyde in pharmaceutical companies was 0.769ppm, in detergent manufacturing was 0.558 ppm, and in poultry farm was 0.432ppm. Considering the short-term exposure limit (TLV-Ceiling) the results of the survey indicate that the number of subjects in exposed group (91.7%) was greater than unexposed group (8.3%). In evaluation NaY zeolite for its purification power it maximally absorbed 56.5% from highest concentration (1.5ppm) of formaldehyde after 8 –hours.
<br><span style="font-weight: bold">Conclusion:</span> Since the inhalation of formaldehyde causes pneumonitis, pulmonary edema and allergic asthma, therefore using suitable personal protective equipment for the people working in these industries is needed. NaY zeolite seems to be a suitable absorption of formaldehyde and further research for its use in protective devices is warranted.
Exposure assessment, Formaldehyde, Zeolite
Exposure assessment, Formaldehyde, Zeolite
7
7
http://ijt.arakmu.ac.ir/browse.php?a_code=A-10-2-65&slc_lang=en&sid=1
Rezvan
Zendehdel
رضوان
زنده دل
10031947532846003472
10031947532846003472
No
Occupational safety References Labortory, Tehransar, Karim Clinic, Tehran, Iran
Occupational safety References Labortory, Tehransar, Karim Clinic, Tehran, Iran
Mojgan
Zendehdel
مژگان
زنده دل
mojganzendehdel@yahoo.com
10031947532846003473
10031947532846003473
Yes
Department of chemistry, Arak University, Arak, Iran.
Department of chemistry, Arak University, Arak, Iran.
Mahmoud
Ghazi-Khansari
محمود
قاضی خوانساری
10031947532846003474
10031947532846003474
No
Department of pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
Department of pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
Homa
Khiri
هما
خیری
10031947532846003475
10031947532846003475
No
Occupational safety References Labortory, Tehransar, Karim Clinic, Tehran, Iran
Occupational safety References Labortory, Tehransar, Karim Clinic, Tehran, Iran
A
Abdoli
عبدالهی
10031947532846003476
10031947532846003476
No
Department of chemistry, Arak University, Arak, Iran.
Department of chemistry, Arak University, Arak, Iran.