• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  7. 7
    7
  8. 8
    8
  9. 9
    9
  10. 10
    10
  11. 11
    11
  12. 12
    12
  13. 13
    13
  14. 14
    14
  15. 15
    15

Science Chemistry Casestudy

Extracts from this document...

Introduction

Do the benefits of using pesticides outweigh the risks? By: Kaye Hin 10R Contents: Introduction Background Science Arguments For Arguments Against Conclusion References Do the benefits of using pesticides outweigh the risks? Introduction: In this case study I am going to find out if the use of pesticides are more beneficial and if these benefits will outweigh the risks. In the 1940s manufacturers began to produce large amounts of synthetic pesticides and their use became widespread. Some sources consider the 1940s and 1950s to have been the start of the "pesticide era." [2] Pesticide use has increased significantly since 1950 and 2.3 million tonnes of industrial pesticides are now used each year in farms. [3] Pesticides are used in intensive farms to control or destroy pests. They can be synthetic chemicals or natural substances. Different pesticides vary in their use on a certain crop. Different properties of pesticides can give a different impact on the environment. Pesticides are used to kill weeds, insects and to stop the spread of a disease. Many pesticides are harmful to sea creatures. They can pollute rivers, lakes and groundwater if used carelessly or disposed improperly. Scientists have linked declining numbers of farmland birds over the last 50 years to pesticide use in intensive farming. ...read more.

Middle

Also Pesticides help ensure that consumers have access to affordable food that is safer and more nutritious. Instead of hand weeding farmers can now use pesticides to protect their crops from weeds which has given farmer families across the world the choice to pursue education and opportunities away from farming, so improving quality of life and living standards. Pesticides can also help safeguard public health by controlling or eliminating pests that cause disease and property damage, which could be bad for our health. [4] Advantages of using pesticides: * Cost effectiveness: Pesticides are an economical way of controlling pests. They require low labour input and allow large areas to be treated quickly and effectively. * Flexibility: A suitable pesticide is available for almost all pest problems with variation in type, activity and persistence. * Quality, quantity and price of produce: Using pesticides means there is a plentiful supply and variety of high quality products at reasonable prices. * Prevention of problem: Pesticides are often used to stop the spread of pests in imports and exports. It also prevents weeds growing in gardens. * Protection of the environment: Weeds are controlled by herbicides, but without them, land would need to be cultivated, increasing land degradation. [3] "In the UK, we are becoming less self-sufficient in food. ...read more.

Conclusion

But on the other hand pesticides also can help and enable farmers to grow more per unit area which reduces pressures on forests and other uncultivated land, conserving natural resources and reducing soil erosion, which is also beneficial to the environment. [2] Using pesticides means there is a plentiful supply and variety of high quality products at reasonable prices which is important for future generations because according to an article "Britain must continue to intensify its farming practices to meet soaring demand for cheap food and prevent shortages, a leading agricultural expert said. Demand for bio fuels, booming economies of developing countries and climate change will put demand on food supplies that can only be met by intensive techniques", said Professor Bill McKelvey, head of the Scottish Agricultural College. [1] This article suggests that in order to meet this need we must use pesticides to produce mass productions of crops. In my opinion I think that pesticides should be used but at a minimal amount and be used cautiously because if it is used carelessly it can result in contamination of ground water and rivers, which can be catastrophic to aquatic life. Also farmers should try seeking alternatives to pesticides such as using natural safe substitutes [3]. References: 1. Guardian http://www.guardian.co.uk/uk/2007/apr/18/foodanddrink.food 26/10/09 [1] 2. Crop Life http://www.croplife.org/issue.aspx?issue=053531b4-ca69-4179-9984-1222b16fea14&activity=314c0067-6e3a-4935-8f90-b446de526582 26/10/09 [2] 3. Miller GT (2004), Sustaining the Earth, 6th edition. Thompson Learning, Inc. Pacific Grove, California. Chapter 9, Pages 211-216. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Organic Chemistry section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Organic Chemistry essays

  1. Marked by a teacher

    Research question - Is using dogs for work ethical?

    5 star(s)

    Imprinting and habituation The definition of imprinting is when young animals bond with animals (including humans) or also a moving objects that are not necessarily their parents. When some animals are born, the first animal it sees or even a moving object is its parent.

  2. Marked by a teacher

    The Issues of Pesticides.

    4 star(s)

    Pesticides are chemicals that are manufactured specifically to be toxic. When they are released into the environment, for example by spraying, they can cause accidental death to humans, pets and domestic animals. This is called direct killing. There are approximately 150 deaths a year in the USA from insecticides, and

  1. What Factors are responsible for the success of Insects?

    Three factors stand out: arachnids, in contrast to the most successful insect groups, lack winged flight, lack the complete transformation of the body form during development (metamorphosis) and usually lack dependence on specific food organisms. Mites, the most diverse and abundant of arachnids, are exceptional in having many very specific associations with other living organisms (Gullan & Cranston, 1994).

  2. Should cannabis be legalised in the UK?

    near schools Current penalties related to cannabis Penalties for supply, dealing, production and trafficking The maximum penalty is 14 years imprisonment. Penalties for possession The maximum penalty is five years imprisonment. Young people in possession of cannabis A young person found to be in possession of cannabis will be arrested

  1. Soil erosion

    of this have a moderate to high risk rating of soil erosion, most of this is on Eyre Peninsula, the Murraylands and the South East". The speed at which soil loss occurs is much better today than they were 10 years ago.

  2. Estimating the population of non-grass plants on the school fields.

    This support the idea that the reason for these plants being so few is that it is their size. The rank order in which I paced the plants in the number that I have found them on the field is also the rank from the biggest to the smallest plant.

  1. Monitoring an Organism

    The primates might not have liked the weather condition therefore they would not do certain behaviours. In order to get the best results as possible we need to go and do the experiment on the summer time. I might not have got the accurate results because of my team got distracted by other fascinating primates.

  2. An Investigation into the water quality of the River Banwell in

    Sampling results: Average Standard deviation Percentile 90 Percentile 10 Number of samples Grades Biochemical oxygen demand (mg/l) 1.93 1.00 3.21 30 B Ammonia (mgN/l) .173 .109 .308 30 B Dissolved oxygen (percentage saturation) 83.46 22.55 54.55 30 D The Biochemical oxygen demand was issued a B in this year.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work