Noise pollution - environmental pollution, Biology

Noise Pollution - Environmental Pollution

Noise is unwanted sound or excessively high levels of sound. Noise pollution is not only an annoyance, but at sufficiently high levels, it may cause loss of hearing. Noise pollution has grown because of increased use of technology. The main sources of noise are: road traffic, railways, industrial operations, construction work, aircrafts, military artillery and ammunition and household electrical appliances. Sound or noise can affect us because of its loudness and pitch or frequency.

Frequency is the number of cycles per second called Hertz (Hz). For example, a radio station uses certain frequencies for the broadcast. The human ear is sensitive to the sound of frequency in the range of 20 to 2000Hz. Loudness is measured in decibel scale (dB), a tenfold increase in sound intensity is represented as 10 dB increase on scale.

Posted Date: 1/21/2013 5:21:05 AM | Location : United States







Related Discussions:- Noise pollution - environmental pollution, Assignment Help, Ask Question on Noise pollution - environmental pollution, Get Answer, Expert's Help, Noise pollution - environmental pollution Discussions

Write discussion on Noise pollution - environmental pollution
Your posts are moderated
Related Questions
Explain Procambium in primary growth in shoot ? The vascular tissue in the shoot is produced from a primary tissue called the procambium, located in the apical meristem. New vas


Common Features of Eye and Limb Development A comparison of the embryonic development of the very much different organs, the eyes and the limb, points to various interesting

Pathophysiology   If  the ductus arteriosus does not close after birth, the higher pressure in the aorta than in the pulmonary artery causes the blood to flow from the aorta, t

Q. What is the anemia? What are the four major types of anemia? Anemia is low concentration of hemoglobin in the blood, the four major kind of anemia are the nutrient-deficienc

Lack of iron in the photic zone of the ocean restricts the size of plankton population.Iron is what kind of factor for marine plankton?

Explain some Medical Considerations during Breastfeeding? Let us look into some special concerns during breastfeeding that might be useful to you as a dietitian. Medical Con

Explain Coelomates? Recall that Acoelomates have solid bodies, and Pseudocoelomates have body cavities that form between the endoderm and the mesoderm. In contrast, the body ca

how many arrs are present in mataphasic telocentric chromosomes

Q. Explain about Bequest value of biodiversity? Sometimes people derive satisfaction from the fact that conserved biodiversity may benefit other individuals in the future, givi