Volatile organic compound emissions from Miscanthus and short rotation coppice willow bioenergy crops

► Miscanthus and coppice willow are increasingly important bioenergy crops. ► Above-canopy fluxes were measured using PTR-MS and virtual disjunct eddy covariance. ► Willow isoprene emission peaked at ∼1 mg m−2 h−1, ≡20 μg gdw−1 h−1 standardised. ► Bioenergy crop species choice should consider their impact on regional air quality.