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Marine pollution in sri lanka
 

Marine pollution in sri lanka

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Marine pollution in sri lanka ...

Marine pollution in sri lanka

A presentation Done by the 1st Year Students (Group 4) of the Department of Forestry and Environmental Sciences, University of Sri Jayewardenepura for the Environmental Chemistry Assignment..

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  • 'MV Grand Bar', a ship carrying a load of 6,250 metric tons of sulphuric acid from Tuticorin to Kakinadan in India developed troubles on Monday, April 6. The crew was rescued by navy and it as found that the Sulfuric acid was leaking. The ship sank 90 nautical miles off Trincomalee. Navy managed to tow the vessel to the deep sea. It was confirmed to have gone 3,000m deep to the sea. (1)Sulfuric acid (H2SO4) is a clear, colorless, odorless, viscous liquid that is very corrosive. As the largest-volume industrial chemical produced in the world, consumption of sulfuric acid is often used to monitor a country's degree of industrialization. Agricultural fertilizers represent the largest single application for sulfuric acid (65%). Other uses include production of dyes, alcohols, plastics, rubber, ether, glue, film, explosives, drugs, paints, food containers, wood preservatives, soaps and detergents, pharmaceutical products, petroleum products, pulp and paper. The common lead-acid storage battery is one of the few consumer products that actually contains sulfuric acid is the common lead-acid storage battery. (2)Sulfuric Acid has moderate acute (short-term) toxicity on aquatic life. Sulfuric acid is very corrosive and would badly burn any plants, birds or land animals exposed to it. It has moderate chronic (long-term) toxicity to aquatic life. Chronic effects on plants, birds or land animals have not been determined. Small quantities of sulfuric acid will be neutralized by the natural alkalinity in aquatic systems. Larger quantities may lower the pH for extended periods of time. (3)Similar incidents have been reported in the past from other countries as well.A ship ran aground in China's 900-year-old Grand Canal dumping 200 tons of sulfuric acid into water in the latest incident to taint the country's already severely polluted waterwaysThe Xinhua News Agency said that pollution-control officials dumped 200 tons of liquid alkali into the water within 12 hours to neutralize the acid. (4)On November 3, a barge loaded with 235,000 gallons of concentrated sulfuric acid, overturned shortly after arriving at a dock in the Port of Texas City, near Galveston. The acid plume traveled into the deeper parts of the channel, to an area approximately 300-600 meters around the vessel. (5)Sri Lanka government is in the process of taking legal action against the company who is responsible for the incident. RanjithKularatne, Chairman of the Marine Environmental Protection Authority stated that they are in the process of preparing the necessary report in this regard. (1)This is a good opportunity to see how effective the existing plans and mechanisms for oil spills management are to handle an unforseen disaster.References:1. Colombo Page, . Colombo Page. [Online] 04 09, 2009. [Cited: 04 10, 2009.] http://www.colombopage.com/archive_09/April9133734RA.html.2. [Online] http://mooni.fccj.org/~ethall/h2so4/h2so4.htm.3. Department of Environment, Water, Heritage and Arts - Government of Australia. National PolutionInventry. [Online] [Cited: April 10, 2009.] http://www.npi.gov.au/database/substance-info/profiles/78.html#environmentaleffects.4. AP. China Daily. [Online] 08 04, 2006. [Cited: 04 10, 2009.] http://www.chinadaily.com.cn/china/2006-08/04/content_657551.htm.5. NOAA. National Ocean Service. National Ocean Service. [Online] 11 21, 2003. [Cited: 04 10, 2009.] http://oceanservice.noaa.gov/news/weeklynews/supp_nov03.html.

Marine pollution in sri lanka Marine pollution in sri lanka Presentation Transcript

  • Marine Pollution In Sri Lanka
  • Group members
    K.P.S. Madhuranga
    ShashiDayarathna
    GayanaManamperi
    ImalkaHitihamu
    Chathura De Alwis
    Prasadi H.L.A.
    IsuruUdayanga
  • Maritime Zones in Sri Lanka
    Territorial Sea
    Contiguous Zone
    Exclusive Economic Zone
    (Pollution Prevention Zone)
  • Sri Lankan Maritime Zone
  • As Sri Lanka is an island
    Recently Sri Lanka engaging with lot of developing projects regarding marine resources
    Because of having development in Tourism
    As mostly urbanization happening in coastal areas
    Why we are focusing on this
  • • Marine Pollution–
    “The introduction by man, directly or indirectly, of substances or energy to the marine environment resulting in deleterious effects such as: hazards to human health, hindrance to marine activities, impairment of the quality of seawater for various uses and reduction of amenities
    (UN definition)
    What is Marine pollution……
  • Marine pollution can be occurred due to various reasons. Generally it can be divided into three major parts,
    • Land base marine pollution .
    • Ships transportation marine pollution.
    Source of Marine Pollutant in Sri Lanka
  • Land run off
    Urban and domestic debris
    Industrial debris
    Agricultural debris
    Tourism
    Off-Shore Installation
    Land Base
  • Surface run-off ;
    from farming
     Urban run-off;
    from the construction of roads, buildings, ports, channels, and harbours, can carry soil and Particles laden with carbon, nitrogen, phosphorus, and minerals.
    Polluted runoff ;
    from roads and highways are the significant source of water pollution in coastal areas in the country.
    Land run off
  • Polluted run-off
    Land Run-off
    Urban runoff
  • Contaminants ;
    organic matters
    metals
    Urban and domestic debris
    close to urban cities, plastic, glasses,polythene, cigarette butts were the most abundant debris, followed by packaging items (boxes, bags, caps, lids), medical waste, and sewage. A high proportion of this material reached the sea by way of sewers
  • chemicals and municipals sewerage
    plastic particles
  • Many animals that live on or in the sea consume flotsam by mistake.
    Plastic debris, when bulky or tangled, is difficult to pass, and may become permanently lodged in the digestive tracts of these animals, blocking the passage of food and causing death through starvation or infection
    Impact of Urban debris
  • Mostly in Sri Lanka , sea turtles and Coral reeves are affected with urban debris and it make huge damage for them
    • Heavy metals ;(Zn, Cu, Sn)
    Industrial effluents are mostly discharged to the ocean
    These metals are held in the sediment in a relatively inert form, but if stirred up into the water column, they become oxygenated and toxic.
    • Organic matters (polychlorinated biphenyls (PCBs)
    • inorganic matters
    • toxins
    Industrial debris
  • Industrial Debris
  • These accumulate in the fatty tissue of plants and animals low in the food chain, and as they pass through the food web to larger and long-lived animals, there is an increase in concentration of the substances in their fat, a process known as bioaccumulation.
    Many animals have tumors and disease. There is mounting evidence that chronic exposure to contaminants causes suppression of the immune responses of marine mammals.
    Impact of Industrial Debris
  • Organic matters
    Heavy metals (Cr, Hg, Cd)
    Nutrients( N,P)
    Chemical pesticides, chemical substances used to kill harmful animals or insects, and fertilizers, chemical or natural substances put on the land to make crops grow better, are another source of pollution
    Agricultural debris
  • Degradation periods of marine debris
  • Merchant Ships
    Fisheries Boats
    Military and research ships
     Ballatwater
    Ship and transportation pollutants
    • Oily discharges from ballast water and bilge water) during routine ship operations and illegal dumping of solid waste
    • Designated dumping grounds at sea (dredged spoil, old munitions, sewage sludge, fly ash, oil based drilling mud)
    • Accidental spills from Ships carrying hazardous substances, oil, gas etc.
    Ships transportation marine pollution
  • Now there is a new threat to our sea and coast pollution from oil spills increasing day by day due to ;
    • accidents ( collisions/grounding of vessels)
    • Negligence and careless handling
    • Discharge of waste oil into sea water
    • Discharge waste containing oil
    • Ship/Boat repairing/servicing/cleaning
    • Oil filling/bunkering
    Major marine pollutant – Oil
  • About ports and 70% of oil spills are within or around harbours
    • Direct physical contact
    • Inhalation or ingestion of toxic components
    • Loss of food resources
    • Birds and furred mammals
    • Inhalation of toxic volatile hydrocarbons
    • Inhalation of toxic volatile hydrocarbons
    • Skin irritation
    • Disturbance to nesting habitat
    • coral reefs
    • tidal flats
    • mangrove forests
    Impact of Oil on organisms
  • Spread of invasive alien species
    lower biodiversity
    Imbalance food chains and ecosystem
    Ballast water
  • The tourist Industry mostly damage for the seashores and Coral reef
    How the tourist industry cause for Sri Lanakan Marine Pollution
    Hikkaduwa is a prime example of what developing tourism can do to a hitherto untouched island treasure.
  • The reefs` aesthetic charms draw tourists by the dozens. For people around the area, this means business opportunities in the forms of hotels, businesses, and one of the biggest threats to the reef, glass-bottomed boats.
    Now Hikkaduwa reefs are being gradually worn down
  • Negambo
    Hikkaduwa
    Mount-lavinia
    Galle
    Panadura
    Kaluthara
    Marine pollution affected areas in Sri Lanka
  • These are our Obsevations
  • What we can do……..
  • Natural remediesWeathering, evaporation, oxidation, biodegradation, and emulsification, sedimentation
    • Human intervention
    • Booms
    • Skimmers (remove floating oil)
    • Sorbents (absorb oil)
    • Dispersing agents,
    • Gelling agents (aid mechanical extraction)
    • Biological agents (oil metabolizing microbes)
    • Mechanical washing
    • Dredging
    Prevention & Control
    • Green infrastructure approach
    • Septic tank
    Domestic sewage
  • Industrial wastewater treatment
  • Marine Pollution Prevention Authority
    Marine Pollution Prevention Authority contribute to protect the marine environment from ship based and shore based maritime related activity, to comply with International and national obligations by promulgation of laws and regulations and implementation of international Conventions relating to marine pollution prevention and all other matters.
  • Sri Lanka sea pollution increasing
    Nov 17, 2008 (LBO) - Pollution of the seas around Sri Lanka is increasing mainly because of pollutants from land, the Marine Pollution Prevention Authority (MPPA) has warned.
    What is Sri Lankan Authority Says about Marine Pollution
  • Marine pollution prevention Act
    Fisheries and Aquatic resources Act.
    Coast conservation Act.
    National environmental Act.
    Legal framework for preventing marine pollution in Sri Lanka
  • Visit to Marine pollution prevention Authority
  • http://www.environmentmin.gov.lk/agencies.htm
    http://www.pollutionissues.com/Ve-Z/Water-Pollution-Marine.html
    http://www.pollutionissues.com/Ve-Z/Water-Pollution-Marine.html http://www.ngo.grida.no/wwfneap/Objectives/pollut.htm
    References
  • Thank you !