Essay about causes and effects of water pollution

The question was reported in the test on March 3rd. You will also find on this page: To what extent do you agree or disagree?

Essay about causes and effects of water pollution

The potential for health effects from exposure to electric and magnetic fields EMF from electric power lines and electrical appliances is a source of concern to the public at large. Citizens have been voicing their fears and concerns in Florida for over a decade. Due to the lack of competent scientific evidence that exposure to power line EMF would produce adverse health effects, the ERC based the field strength standards on the premise that new transmission lines and substations should not produce fields greater than the EMF from lines already existing.

This report was completed in early May The working group report drew conclusions on the strength and robustness of the experimental data related to extremely low frequency EMF exposure and its implication for human health and disease etiology.

The Working Group also made final evaluations for non-cancer endpoints by a similar procedure.

Essay on Water Pollution: Types, Causes, Effects and Control

They didn't say it wasn't. Probably does not mean 'NOT' In arriving at their conclusion of possible carcinogenicity the Working Group used evidence from epidemiological studies to support their finding.

Twenty out of the twenty-six members that voted concluded that there is limited evidence that residential EMF is carcinogenic to children based on childhood leukemia studies. Three lines of evidence were cited in supporting the conclusion: The group also felt that there is inadequate evidence from spot measurements of EMF to support a finding of risk to children.

A smaller majority 14 out of 26 considered that there is limited evidence that occupational exposure to EMF is a risk to humans based on chronic lymphocytic leukemia studies.

Of the Working Group that voted, they were almost unanimous in concluding that: The Working group also felt that either there was inadequate evidence in experimental animals in vivo for the carcinogenicity of EMF exposure or that there was evidence of a lack of effect.

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Using the IARC guidelines the Working Group concluded that a limited number of well performed studies provide moderate evidence that for mechanistic plausible effects of ELF EMF in vitro at intensities greater than microTesla 1 Gauss on end-points generally regarded as reflecting the action of toxic agents.

The Working Group also concluded that there is only weak support for an effect of fields less than microTesla.

Essay about causes and effects of water pollution

They studied animals who cannot speak The human studies considered addressed adverse birth outcomes after maternal exposure, adverse reproductive effects after paternal exposure, Alzheimer disease, AMLS and other motor neuron diseases, suicide and depression, and cardiovascular disease.

There is one biological effect with a health impact found to have "strong" evidence supporting an EMF effect. Exposure to electric and magnetic fields affects bone repair and adaptation.

Acid rain | Definition, Causes, Effects, & Formulas |

The Working Group could not reach a decision on whether EMF exposure could effect nervous and non-bone connective tissue repair. Weak evidence was noted for EMF affect on heart-rate variability and on short term human exposure causing sleep disturbance and melatonin suppression.

The Working Group Report also stated: In other words, they did an inadequate study Dr. The strongest evidence for health effects comes from associations observed in human populations with two forms of cancer:The emission of sulfur dioxide and nitrogen oxides to the atmosphere by human activities—primarily fossil-fuel burning—has led to the acidification of rain and freshwater aquatic systems.

Essay about causes and effects of water pollution

ADVERTISEMENTS: Essay on Water Pollution: Types, Causes, Effects and Control! When the quality or composition of water changes directly or indirectly as a result of man’s activities such that it becomes unfit for any useful purpose is said to be polluted.

Two Types of Pollutions: 1. Below is a model IELTS writing task 2 answer for an essay question reported in the IELTS test this month. The question was reported in the test on March 3rd. You will also find on this page: a link to learn plastic bag facts; useful vocabulary for this topic.

May 01,  · Air pollution is due to the direct implication of industrialization. The chimneys of industries emit smoke and vehicles have fumes, which directly contribute to air pollution. Published: Mon, 5 Dec million of people worldwide do not have sufficient access to drinking-water and more than million do not have access to simple sanitations.

Water pollution, like other types of pollution result when an overwhelming amount of waste comes from different sources of pollutant which harmfully disrupts the balance of the ecosystem; consequently, the waste cannot be destroyed or cleaned up as quickly as produced which results in many disadvantageous to humans and animals, as well as .

IELTS Writing Task 2 Sample Answer Band 9