Industrial and agricultural liquid discharges | Scotland's Marine Assessment 2020

The release of liquids into the marine environment undertaken as part of agricultural or industrial processes.

Associated productive assessment:

Waste water treatment and industrial outfalls

Associated pressures:

Barrier to species movement

Hydrocarbon & PAH contamination. (Includes those priority substances listed in Annex II of Directive 2008/105/EC).

Introduction of microbial pathogens (disease), viruses or parasites

Introduction of other substances (solid, liquid or gas)

Nitrogen and phosphorus enrichment

Organic enrichment

Physical change (to another seabed type)

Radionuclide contamination

Reduction in availability or quality of prey

Salinity changes - local

Siltation rate changes (light)

Sub-surface abrasion/penetration

Synthetic compound contamination (inc. pesticides, antifoulants, pharmaceuticals). Includes those priority substances listed in Annex II of Directive 2008/105/EC.

Temperature change - local

Transition elements & organo-metal e.g. Chromium, Copper, TBT) contamination. Includes those priority substances listed in Annex II of Directive 2008/105/EC.

Water clarity changes