The state of global scientific literature on chlorophyll-A

Abstract

ABSTRACT:Chlorophyll is a green pigment common to all photosynthetic cells of autotrophic organisms in aquatic or terrestrial environments. Techniques used to quantify this pigment include fluorescence, UV spectrophotometer, chromatography, HPLC, and remote sensing. Determination of the photosynthetic pigment chlorophyll -a (Chl-a), has been used widely in many areas of science. The present study investigated the state of the global scientific literature on Chl-a, determining the countries, approaches, and environments where Chl-a has been studied and the geographic scale used. To obtain this scientometric information, we conducted a study from the Scopus database over a 21-year period from 1990 through 2011. This period saw significant increases in the number of publications (r=0.84 and P< 0.001), different journals where publications appeared (160 journals), major papers with a multidisciplinary character, and a predominance of descriptive approaches with studies conducted in aquatic and marine habitats at a regional scale. The country with the highest number of publications was China (21.64% of total papers; location of study), and the USA had the highest number of authors (19.52% of total papers). The main determining factor for publications was socioeconomic (according to model selection criteria; AIC). This study highlight the multidisciplinary use of Chl-a, and may give some directions to new studies about this pigment.

Fenton: A Systematic Review of Its Application in Wastewater Treatment

“…Meanwhile, Wang and Zhuan [15] have also published the review of AOPs for the degradation of antibiotics without a specific bibliometric methodology. Conversely, the recent review follow the bibliometric methodology reported by other authors [16,17]. With this in mind, in this work a systematic literature review of the Fenton approach in wastewater treatment was carried out, with the aim of outlining its global use, reaction details, forms of data analysis, and temporal variations.…”

Relative influence of direct and indirect environmental effects on sestonic chlorophyll-a concentration in Cerrado streams

“…These organisms are good indicators of environmental quality for being sensible to environmental changes and having a fast response, due to their short lifespan (Lee, 2008). Chlorophyll-a has been continuously studied (Marcionilio et al, 2015) and is a good representative of phytoplankton biomass (Boyer et al, 2009;Carneiro et al, 2014) and may be used to indicate environmental degradation (Figueroa-Nieves et al, 2006;Boyer et al, 2009;Carneiro et al, 2014) in freshwater environments, e.g., streams (Dodds et al, 1998).…”