AN IMPACT ASSESSMENT OF EFFLUENT FROM THE WATER TREATMENT PLANT PINEDO TO SUSTAIN THE ALBUFERA NATURAL PARK

The aim of this research is to elaborate of the impacts on the use of the effluent of the water treatment plant Pinedo in the North of Albufera Natural Park in Valencia, Spain. Interviews and observations were conducted, which together created an Impact Assessment. To be able to see the influence of effluent on the water quality, an observation point in the north was compared to another observation point in the south. Besides that, a boat trip was made to observe the water quality on the lake. The result shows that eutrophication occurs as a cosequence of the wastewater from water treatment. Farmers have no choice and are happy to have a constant source. Fishermen have experienced a disastrous change in the seventies, but now see an improvement of the water quality. Environmentalists are most negative about the effluent inflow. The government understands the concerns and wants a higher quality of the effluent, but they do not have means to improve it. Water treatment plant Pinedo recognizes the corncerns either; however, the water quality already meets the requirements. Forecasting the future, everybody is slightly positive. The improvement of the quality of the effluent is a good thing and should carry on.

Contribution to the knowledge of the mosquitoes in the Devesa of Racó de l’Olla, Albufera Natural Park of Valencia (Spain)

Se presenta una recopilación de los resultados de varios proyectos, desarrollados entre los años 2004 y 2015, sobre la presencia de los mosquitos de la familia Culicidae en el entorno de la Devesa y el Racó de l’Olla del Parque Natural de l’Albufera de Valencia (España). Se registró un total de 10 especies pertenecientes a cinco géneros (Aedes, Coquillettidia, Culex, Culiseta y Ochlerotatus), alguno de estos muy característicos de los ambientes donde fueron recolectados. Se tratan diferentes aspectos sobre la diversidad de culícidos, así como del interés ecológico y sanitario de la presencia de los mismos. Destacamos la existencia de la especie Aedes albopictus (Skuse, 1894) en un espacio acotado por viviendas, construidas en los años 1970, y no recolectada en las malladas. A compilation of the results obtained in several projects developed between the years 2004 and 2015 on the presence of the mosquitoes of the family Culicidae in the surroundings of the Devesa and Racó de l'Olla of the Albufera Natural Park of Valencia (Spain). A total of 10 species belonging to five genera (Aedes, Coquillettidia, Culex, Culiseta and Ochlerotatus) were recorded, some of them very characteristic of the environments where they were collected. Different aspects are discussed on the culicid diversity, as well as on the ecological and health interest of the presence of these species. We highlight the presence of the species Aedes albopictus (Skuse, 1894) in a space limited by housing, built in the 1970s, and not collected in the malladas.