Determination of Highest Dose of Ammonia without Effect at Work Environment through the Expression of Interleukin-2 Cell in .

Background: For determining the threshold limit value firstly determined the highest dose of ammonia without effect (NOAEL). However, research on the determination of NOAEL ammonia didn't conduct in Indonesia.

Aim: The aim of this study to determine the value of the highest dose of ammonia without effect (No Observed Adverse Effect Level/NOAEL) through interleukin-2 (IL-2) expression on white mice.

Relationship of Benzene Exposure to Trans, Trans-Muconic Acid and Blood Profile of Shoe Workers in Romokalisari Surabaya, Indonesia.

Background: Benzene is a hazardous ingredient for health. Benzene is used as a latex glue solvent in the shoe industry.

Aim: The purpose of the study was to analyse the relationship between benzene exposure with trans, trans-muconic acid (t, t-MA) and the blood profile of shoe workers in Romokalisari Surabaya.

Risk Analysis Characterization of Benzene and Demographic Factors toward Immunoglobulin A.

Background: Research on risk assessment at industrial sites has experienced growth during the end of this year. But in Indonesia, there is still limited research on risk assessment, especially regarding the importance of measuring non-carcinogenic risk assessment in the workplace. Benzene exposure is believed to reduce levels of immunoglobulin A (IgA) in workers.