...[pollution] challenges rank among the most serious facing Beijing's government. But for several French corporate bosses...they also represent opportunities. Veolia Water [part of Veolia Environnement]...expects its business to grow...as China's water shortages and pollution boost the need for water recycling and waste management...Addressing a different aspect of China's environmental challenge is Environnement SA...[which] sells advanced equipment for measuring emissions from chimneys and cars as well as the general level of air pollution in cities. [also refers to Horiba]