الفهرس 
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Abstract
Noise originates from human activities especially the urbanization and the
development of transport and industry. Noise is not a unique problem for developing
countries. The worrisome effects of noise are dangerous enough that noise problem is
considered enext to crime by certain countries. It was reported that 16% of people in
Europe are exposed to 40 dB or more of traffic noise in their bedrooms at night and
compared it with WHO’s average estimates of 30 to 35 dB for undisturbed sleep.
Noise (or sound in general) comes from vibrating objects. Vibration can result
from airflow, high speed rotating machines friction or mechanical impacts involved
in machine operation. The evidence that people show negative subjective response to
noise is strong. This is likely due to that considerable variation in people’s tolerance
to noise levels and the different types or noise, making it difficult to quantify direct
health effect.
Adverse effects include: Hearing loss, annoyance, cardiovascular system, sleep
disturbance, immune effects reproductive effects, performance effects.
Urban and industrial noise pollution result of: Road traffic noise, Aircraft
noise, Rail traffic noise, Neighbourhood noise, industrial noise.
This research aims to evaluate the noise levels to compare between noise levels
in industrial and urban areas. from the measured data performed for included
industrial sites in the study. The allocated industrial sites in the study. The allocated
industrial sites included a large fertilizers factory, small plastic factory, electrically
powered drainage station and diesel powered irrigation station. Noise levels in
different urban areas showed nearly double the permissible level in the Egyptian law
of environment. Meanwhile, industrial noise showed 50% increase more than
permissible level.