Polling the opinions of the Rijnmond-population on environmental issues. Attitude towards extension of industries in Rijnmond area / preferred kind of abatement of airpollution / experience of and troubles with air-pollution and other dangers of modern industry / opinion on activities of institutes concerned with airpollution and waterpollution / acquaintance with environment action groups and their activities / industries that cause most pollution / acquaintance with information centre ( meld en regelkamer ) and use of it / expectations about activities of government and industry concerning liveability next 5 years / expectations about destination 'Maasvlakte' / preferred way of protest against smog / effectiveness of protest by the population / agreement with protest of action groups / kind of punishment for infringement concerning pollution / situation Rijnmond today concerning air, water, noise / improvement or deterioration last year. Background variables: basic characteristics/ residence/ household characteristics/ occupation/employment/ income/capital assets/ education/ social class/ politics/ religion