In recent years, sensitivity and intolerance of large public to odour nuisance has significantly increased and new regulations were implemented in many developed countries (Frechen, 2000; Stuetz and Frechen 2001). An increasing concern for efficient odour control in urban areas is also observed all over the world, both on developed and developing countries. The social impacts of olfactory perceptions are becoming an issue and an increasing public concern (Remy and Estades, 2007) as the air quality can affect lifestyle and public attitudes.
In 2007, the government and local authorities of Algeria decided to implement a demonstration project for odour control of the Oued el Harrach in the centre of the capital city of Algiers for the mitigation of odour nuisance. The discharge of raw urban and industrial wastewater and the accumulation of sediment were the main cause of the emission of unpleasant odours, in particular during summer periods. A large investment program of sanitation and rehabilitation of the river was launched by the Algerian government and a temporary project for odour control by masking agents was implemented in the vicinity of the main bridges. In parallel, an odour panel was constituted with representatives from the local authorities, local population and the operator for the evaluation of the efficiency of masking agents. In 2009, a sociological survey was performed by the team of SEAAL with the support of Suez Environnement and the University Paris V.
The main objective of this paper is to present the results of the efficiency of the attenuation of odour nuisance by the selected masking agents and the public perception of this project.
In recent years, sensitivity and intolerance of large public to odour nuisance has significantly increased and new regulations were implemented in many developed countries (Frechen, 2000; Stuetz and Frechen 2001). An increasing concern for efficient odour control in urban areas is also observed all over the world, both on developed and developing countries. The social impacts of olfactory perceptions are becoming an issue and an increasing public concern (Remy and Estades, 2007) as the air quality can affect lifestyle and public attitudes.In 2007, the government and local authorities of Algeria decided to implement a demonstration project for odour control of the Oued el Harrach in the centre of the capital city of Algiers for the mitigation of odour nuisance. The discharge of raw urban and industrial wastewater and the accumulation of sediment were the main cause of the emission of unpleasant odours, in particular during summer periods. A large investment program of sanitation and rehabilitation of the river was launched by the Algerian government and a temporary project for odour control by masking agents was implemented in the vicinity of the main bridges. In parallel, an odour panel was constituted with representatives from the local authorities, local population and the operator for the evaluation of the efficiency of masking agents. In 2009, a sociological survey was performed by the team of SEAAL with the support of Suez Environnement and the University Paris V.The main objective of this paper is to present the results of the efficiency of the attenuation of odour nuisance by the selected masking agents and the public perception of this project.
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