The number of STI tests keeps increasing The number of clients tested for sexually transmitted infections (STIs) at Dutch STI clinics has increased since 2004.
Cost-effective risk assessment of nanomaterials may be feasible Companies, authorities and scientists can save time, money and test animals in the risk assessment of nanomaterials by using available data.
Risk of degradation of European ecosystems by air pollution is decreasing The number of natural areas in Europe that are threatened by air pollution will decrease between 2005 and 2020.