151 | An audit of performance in the primary analysis of standard biological macro-invertebrate samples in 2001 : Environment Agency CEH Report Ref: COO 158/23 |
152 | A report of the conservation and recreation market testing project on : conservation operational advice, conservation collaborative projects, recreational collaborative projects, landscape assessment |
153 | Environmental radioactivity around steel works : an evaluation of the significance of lead-210 and polonium-210 in environmental samples collected in 1996/97 from around steel works Operated by British Steel at Redcar, Scunthorpe, Llanwern and Port Talbot |