The Eurobarometer is a program commissioned by the European Commission to monitor public opinion in the European Union member countries. Topics vary with each series, and have included agriculture, energy, environment, gender roles, immigration, knowledge of foreign languages, poverty, public health, technology, and other special topics.

Topics covered by Eurobarometer 35.1 included: transport, travel, and mobility; consumption and consumer behavior; economic systems and development; and biotechnology.

Data collection took place from 2-22 April, 1991.