R. K. Douglas

Rapid prediction of total petroleum hydrocarbons concentration in contaminated soil using vis-NIR spectroscopy and regression techniques

R. K. Douglas, Said Nawar, M. Carmen Alamar et al. · The Science of The Total Environment · 2017 · 128 citations · Full text

Environmental Chemistry, Environmental Monitoring, Engineering +8

Evaluation of major factors influencing the geochemistry of groundwater using graphical and multivariate statistical methods in Yenagoa city, Southern Nigeria

K. S. Okiongbo, R. K. Douglas · Applied Water Science · 2014 · 69 citations · Full text

Groundwater Quality, Environmental Monitoring, Engineering +17

The applicability of spectroscopy methods for estimating potentially toxic elements in soils: state-of-the-art and future trends

Said Nawar, Sabrina Cipullo, R. K. Douglas et al. · Applied Spectroscopy Reviews · 2019 · 56 citations · Full text

Environmental Monitoring, Engineering, Chemistry +23

Evaluation of vis-NIR reflectance spectroscopy sensitivity to weathering for enhanced assessment of oil contaminated soils

R. K. Douglas, Said Nawar, Sabrina Cipullo et al. · The Science of The Total Environment · 2018 · 38 citations · Full text

Soil Property, Environmental Chemistry, Enhanced Assessment +6

Rapid detection of alkanes and polycyclic aromatic hydrocarbons in oil‐contaminated soil with visible near‐infrared spectroscopy

R. K. Douglas, Said Nawar, M. Carmen Alamar et al. · European Journal of Soil Science · 2018 · 33 citations · Full text

Environmental Monitoring, Engineering, Well Diagnostics +24