151 | An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2001 : Environment Agency CEH Report Ref: COO 15 8/24 |
152 | An audit of performance in the primary analysis of standard biological macro-invertebrate samples in 2001 : Environment Agency CEH Report Ref: COO 158/23 |
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 |