Report/Guide

Connor, A; Medland, D; Stratford, E; Yarrow, N; Barros, H; Robinson, R (2026) Hydrogen monitoring and measurement: Evidence report to support the development of LDAR and MCERTS standards. NPL Report. ENV 65

Cornwell, C; Brown, A S; Schmeer, J; Zhang, Y; O'Sullivan, D; Huggett, J (2026) Exploring the potential impact of metrology to advance the use of airborne environmental DNA (eDNA) for biodiversity monitoring. NPL Report. ENV 66

Williams, K R; Bradshaw, C P; Ciupek, K; Singh, G K; Tompkins, J T; Brown, A S; Butterfield, D M; Derby, A T; Farooq, M H; Harvey, R N; Kazemimanesh, M; Longhurst, B A; Kean, M N; Robins, C C; Schmeer, J L; Tipler, J M; Tomson, M; Walker, D J W; Priestman, M D S; Tremper, A H; Ek, D E B; Green, D C; Punter, P B (2026) UK Particle Concentrations and Numbers and Black Carbon Networks: Annual report 2025. NPL Report. ENV 68

Williams, K R; Cheong, J H L; Adams, A; Bradshaw, C P; Braysher, E C; Brown, A S; Brown, R J C; Butterfield, D M; Coulson, S A; Lines, K J; Robins, C C; Schmeer, J L; Showman, Y A (2026) UK Heavy Metals Monitoring Network Annual Report 2025. NPL Report. ENV 67

Article

Brewer, P J; Brown, R J C; Lee, S; van der Veen, A (2026) Twenty-Five Years of CIPM-CCQM Gas Analysis Key Comparisons. Analytical Chemistry, 98 (7). pp. 5691-5698. ISSN 0003-2700

Cairns, W R L; Braysher, E C; Butler, O T; Cavoura, O; Davidson, C M; Todoli Torro, J L; von der Au, M (2026) Atomic spectrometry update: review of advances in environmental analysis. Journal of Analytical Atomic Spectrometry, 41 (1). pp. 16-70. ISSN 0267-9477

Gregg, D J; Tompkins, J; Cordell, R L; Brown, A S; Smallbone, K L; Vande Hey, J D; Wyche, K P; Monks, P S (2026) The impacts of the Ultra Low Emission Zone (ULEZ) and COVID-19 restrictions on air quality in central London – evidence for an increase in small particles. Atmospheric Environment, 365. 121668 ISSN 13522310

Rennick, C; Safi, E; Hillier, A; Hopkinson, E; Hill-Pearce, R; Arnold, T (2026) Uncertainties in Calibration of an Optical Spectrometer for Measuring Isotope Ratios in Methane. ACS Measurement Science Au, 6 (2). pp. 291-302. ISSN 2694-250X

Shaw, J T; Howes, N; Connolly, J; Buculei, D E; Ryan, J; Helmore, J; Yarrow, N; Butterfield, D; Innocenti, F; Robinson, R (2026) Assessment of the Fugitive Emission Distributed Sampling (FEDS) system: a mobile, multi-inlet system for continuous emissions monitoring. Atmospheric Measurement Techniques, 19. pp. 1117-1145.