Study Reveals Dangers of Gasoline Vapor Exposure on Rat Bron

Study Reveals Dangers of Gasoline Vapor Exposure on Rat Bronchial Health

A recent study conducted at Universitas Muhammadiyah Yogyakarta investigates the effects of Pertamax and Premium gasoline vapor exposure on the bronchial histology of white male rats, revealing significant health risks.

Published

August 9, 2026

Declassified

Date not listed

Source agency

Internet Archive

studyrevealsdangersgasolinevaporexposureratbronchial

Overview of Gasoline Types and Their Composition

The study compares two types of gasoline commonly used in Indonesia: Pertamax and Premium. Pertamax is formulated without lead and contains methyl tertiary butyl ether (MTBE) or ethyl tertiary butyl ether (ETBE) as an octane booster, achieving an octane rating of 92. In contrast, Premium gasoline contains tetra-ethyl lead, which is associated with an octane rating of 88.

The presence of lead and benzene in Premium gasoline poses significant health risks, particularly to the respiratory system, as these compounds are known irritants that can adversely affect bronchial tissues. In the experimental study, white male rats (Rattus norvegicus) were exposed to vapors from both gasoline types for eight hours a day over a 30-day period. The results indicated notable differences in bronchial histology between the control group and those exposed to gasoline vapors.

Specifically, the bronchial epithelium in rats exposed to Premium gasoline exhibited a greater thickness compared to those exposed…

Continue reading with DeclassifyAI Premium. Get unlimited access to declassified document analysis, source-linked investigations, newsletters, and topic alerts for $10/month.

$10/month · Billed every 30 days from your signup date

This analysis is based on officially released government source documents. The original government source link remains available above for transparency. Premium is $10/month — secure checkout is coming soon.

Source verification

This article is based on an officially released source document linked below.

DeclassifyAI summarizes and analyzes the document — it does not replace the original release.

Review the original government source material directly for full context and verification.

The official source link is provided so you can confirm provenance yourself.

Based on the official release at https:the official source document

Original government source · Internet Archive

Perbandingan Pengaruh Pendedahan Uap Bensin Jenis Pertamax Dan Premium Terhadap Gambaran Histologi Bronkus Tikus Putih (Rattus Norvegicus) Jantan

Official government source URL

https://archive.org/details/2-19-30-5106-11339-2-pb

Read Full Document Source

Official Source DocumentSource Link Provided

Disclaimer

This article is based on declassified or officially released source material. DeclassifyAI summarizes and analyzes the linked government document. Always review the original official source directly — linked above — before relying on any summary or interpretation. Illustrations shown with articles are not part of the originally released documents; they are added by DeclassifyAI for substance when the source release does not include usable imagery.