Industrialisation
The area around the bay in Spain is heavily industrialised with extensive petrochemical installations near San Roque (such as the CEPSA oil refinery and Acerinox stainless steel manufacturing plant) and working ports in both Algeciras and Gibraltar. The bay's waters are used by a considerable number of large and medium sized ships, notably oil tankers and freighters. Oil bunkering activities are also heavily carried out.
Read more about this topic: Bay Of Gibraltar