Results 31 to 40 of about 11,050 (127)

Measuring the levels of acetylcholinesterase and plasma thiol groups in selected technical personnel of National Iranian Gas Company

open access: yesSalāmat-i kār-i Īrān, 2020
Background and purpose: Over time new energy sources and advanced technologies will be needed. Fossil fuels such as gas energy play a major role in the energy demand of world.
rezven zendehdel   +5 more
doaj  

[Substantiation of maximum allowable concentration of TZ-85 in workplace air in agriculture].

open access: yesGigiena i sanitariia, 1999
The plant growth stimulant TZ-85 is a native preparation. Its LD50 are as follows: 780, 5000, and 2500 mg/kg for albino mice, albino rats, and rabbits, respectively. The cumulative coefficient of the agent is more than 3; Limac is 235 mg/kg, Limch is 10 mg/kg. Its MAC for the air of a working area is 3 mg/kg.
openaire   +1 more source

Evaluating Poly-Aromatic Hydrocarbons in respiratory zone of the asphalt workers in Tehran city

open access: yesبهداشت و ایمنی کار, 2014
Introduction: PAHs are organic compounds with benzenic rings that releas from hot asphalt as incomplete combusting. These compounds are one of the major concern in scientific societies, workplace and environment due to their stability, bioaccumulation ...
H. Aghaei   +5 more
doaj  

Assessment of exposure to lead through air and biological monitoring in a lead and zinc mine

open access: yesSalāmat-i kār-i Īrān, 2019
Background and aim: Lead is ubiquitous and one of the earliest metals discovered by the human. This metal is widely used in different industries due to its important physico-chemical properties like softness, high malleability, ductility, low melting ...
Emad Mirsalimi   +2 more
doaj  

Experimental study and modelling of date palm fibre composite acoustic behaviour using differential evolution algorithm

open access: yesSalāmat-i kār-i Īrān, 2019
Background and aims: In recent years, in most countries of the world, the provision of a calming environment without disturbing noise has become a need, which has subsequently led to significant growth in noise control techniques.
Ebrahim Taban   +4 more
doaj  

Monitoring and assessment of potentially hazardous particles in high-risk workplaces in the production of Ni-Cd batteries. [PDF]

open access: yesSci Rep
Tokarčíková M   +7 more
europepmc   +1 more source

Aluminium - Addendum: re-evaluation of the BAT Value and assignment to a pregnancy risk group: Assessment Values in Biological Material - Translation of the German version from 2025. [PDF]

open access: yesMAK Collect Occup Health Saf
Michaelsen S   +7 more
europepmc   +1 more source

Home - About - Disclaimer - Privacy