Accumulation of pressures that can cause contaminant entries in the Levantino-Balear Demarcation (EM LEVA PRE Pollution)
Description
The cumulative pressure analysis has been carried out taking into account all polluting sources together. That is to say, no individual analysis has been carried out per pollutant, nor has it been taken into account whether the discharge is intentional or accidental, but the areas with the highest probability of contributions of polluting loads in the Demarcation have been identified. To do this, first a selection of mesh cells has been made, based on the following criteria:
- Those containing a monobuoy
- Those containing a hydrocarbon platform
- Those that are less than 500 m from an authorized place for the discharge of dredging material
- Those that coincide with EMEP cells with higher loads of hazardous substances (those that add up to 50% of the total dioxin contamination and 25% by heavy metals, starting from the highest to the lowest sum)
- Those that are less than 5 km from a complex of the PRTR register that has no obligation to report through said register.
- Those that are less than 2 km from the mouth of a river
- Those less than 2 km from municipal solid waste landfills
- Those that are less than 5 km from the mining operations greater than 100 Ha
- Those that are less than 2 km from treatment plants without obligation to inform the public according to the PRTR regulation
- Those that are less than 2 km from a port without traffic of dangerous goods
- Those less than 5 km from complexes in the PRTR register with an obligation to report through the PRTR register (includes industrial installations and sewage treatment plants)
- Those that are less than 2 km from a river or transitional water body that does not meet the chemical status (according to the river basin plans)
- Those that are less than 5 km from a port with dangerous goods traffic
- Those that overlap with a coastal water body that does not meet the chemical status (as indicated in the river basin plans)
Once all the elements have been integrated, the index has been calculated using the following formula:
POLLUTION INDEX = 0.1*[monobuoys + platforms] + 0.25*[Dregged material landfills + atmospheric depositions with high concentrations of metals or POPs + industrial facilities reporting to the PRTR but without obligation to report + WWTPs not reporting to the PRTR + river mouths + MSW landfills + mines + WWTPs] + 0.5* [ports not carrying dangerous goods] + 0.75*[rivers or transitional waters in poor chemical status + PRTR complexes with obligation to report] + 1*[Coastal waters in poor chemical status + ports dangerous goods]
The result is a mesh of probabilities of entry of loads of dangerous substances that can therefore indicate areas with potential risk of contamination. The selected ranges are:
Very High: Major 3,25 / High: 2.25 to 3.25 / Medium: 1 to 2.25 / Low: 0.35 to 1 / Very Low: minor 0.35
Resources
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http://remro.cedex.es/WebCepyc/Levantino/LContaminacionMallado.rar |