Posts Tagged ‘ noise hazard ’

Hearing Protection Devices

hearing protection device

ear plugs

Hearing protection devices are used to control high level noise hazards, when engineering and administrative controls can not decrease the noise level. They may come in the form of ear plugs or ear muffs.

In order to know that you are exposed to high level noise hazards, then you should measure the noise level from the sources at your workplace. Each noise source has different nature. It could expose noise hazards in impulsive, intermittent or even continuous manner.

Besides ear plug and ear muffs, there is another hearing protection device available in the market, e.g. canal caps. (more…)

Tags: , , , , ,

The Hazards of Occupational Noise Exposure

Occupational noise hazard are frequently ignored by most workers as well as employers because it is invisible. They prioritize visible hazards such like fire, hazardous chemical, compressed gases, falls, slips and electric hazards. They think these hazards could be harmful to workers’ safety and health directly. However, most worker and employers do not realize that occupational noise will do the same. The differences are only on delay and indirect effect.

We understand that long-term exposure of high occupational noise will not hurt worker’s leg like fall accident. But they do not realize that the soft tissue inside the ears will be damaged and occupational noise hazard can cause permanent damaged to worker’s hearing ability.

Of course it takes time to see the effect of high noise level hazard to worker’s hearing ability, since it depends on noise level and exposure time. Each country in the world may have determined its own permissible noise exposure level (dB) and exposure time.

Hearing Loss Symptoms

 Hearing loss is the most severe effect of loud occupational noise, although it is not a painful effect. Generally, there are several symptoms that accompany hearing loss. It could be muted sounding voices, ringing felt inside the ears, which is evident in silent places, and feeling of strain inside the ears.

Inner ears damage may remain even though hearing loss symptoms are weaken. The condition will get worse if exposure to hazardous occupational noise level is continued.

Workers who have already suffered hearing loss will face big problem for their individual and family life. Workers’ life will be saddening, stressful and frustrating.

After knowing the occupational noise hazards, the next step that we should do is to identify dangerous noise level sources in the plant site and take necessary counter measures to control the hazards. Put safety signs that show noise level (dB) of these sources in order to remind the workers.

Tags: , , , , , ,

Typical Personal Protective Equipments Used in Chemical Plants

personal-protective-equipmentIn this article we will talk about personal protective equipment (PPE) used in chemical plants. Each chemical plant, job or work process may require different personal protective equipments, but we will talk about it in general.

According to OSHA, personal protective equipments are devices designed to protect employees from serious workplace injuries or illnesses resulting from contact with chemical, radiological, physical, electrical, mechanical, and other workplace hazards. Meanwhile, in terms of hazard control methods, usage of personal protective equipment is the last hazard control. (more…)

Tags: , , , , ,

12 Confined Spaces Hazards

confined-spaces1Confined space is one of the most deadly spaces in the workplaces. It is because of confined spaces contain many potential hazards and have restricted exits way.

Related to confined spaces, OSHA requires that:
a. All confined spaces in the workplaces shall be identified.
b. Confined spaces shall be treated as hazardous until proven.
c. All confined space hazards shall be identified.
d. Appropriate response should be given to these hazards before entry.

Confined space hazards can be classified into hazardous atmosphere, physical hazard, chemical contact hazard and biological hazard. The hazard list below is hazards that are commonly identified in a confined space.

  1. Oxygen rich (greater than 23.5%). This condition will introduce fire or explosion, especially when flammable vapor exists. So never use pure oxygen for ventilating a confined space. Use normal air supply only.
  2. Oxygen deficient (less than 19.5%). Oxygen deficient or lack of oxygen can cause unconsciousness to death. Oxygen concentration in a confined space can be declined due to nitrogen intrusion, welding, grinding, oxidation, sandblasting or coating.
  3. Oxygen and the existence of flammable vapors or gases can create flammable atmosphere. Chemical reaction and concentration of combustible dust may also create flammable atmosphere.
  4. Toxic atmosphere. It is introduced when a toxic chemical or gas is stored in a tank/holder, when carbon monoxide or hydrogen sulphide is produced through decomposition or work being done in the confined space.
  5. Corrosive atmosphere. Hydrochloric acid and ammonia are examples of chemicals that can build up a corrosive atmosphere.
  6. Physical configuration hazards. The use of ladder and scaffolding, wet surface, uneven bottom, bends in tunnels, narrow area or poor lighting can cause physical hazards to the workers inside confined spaces.
  7. Mechanical hazards. Mixing vessel, which is equipped with blades, can introduce mechanical hazard when workers come into the confined space (mixing vessel). Including in mechanical hazard is falling object.
  8. Surface hazard, for instance slips and falls.
  9. Noise hazards. Grinding work inside a confined space can result high level noise.
  10. Vibration hazards.
  11. Engulfment hazards. Engulfment hazard may happen when worker is entrapped by content of the confined space.
  12. Temperature hazards. Cold temperature and heat create temperature hazard inside a confined space.

Always bear in mind that hazards identification shall be finished before entering a confined space. Then, provide appropriate hazard controls to these potential hazards afterward.

Tags: , , ,

Subscribe To Updated News & Offers