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M.P. Jonathan

Researcher at Instituto Politécnico Nacional

Publications -  131
Citations -  2989

M.P. Jonathan is an academic researcher from Instituto Politécnico Nacional. The author has contributed to research in topics: Medicine & Environmental science. The author has an hindex of 26, co-authored 113 publications receiving 2260 citations. Previous affiliations of M.P. Jonathan include Universidad Autónoma del Estado de Hidalgo & University of Madras.

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Journal ArticleDOI

Geochemical variations of major and trace elements in recent sediments, off the Gulf of Mannar, the southeast coast of India

M.P. Jonathan, +2 more
- 01 Feb 2004 - 
TL;DR: In this paper, the authors analyzed surface sediment samples from two seasons to obtain a preliminary view of its environmental conditions, geochemical distribution of major elements (Si, Al, Fe, Ca, Mg, Na, K, P), trace elements (Mn, Cr, Cu, Ni, Co, Pb, Zn, Cd) and acid leachable elements (Fe, Mn, Cr., Cd, Cu and Zn) in the Gulf of Mannar.
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Occurrence, distribution and possible sources of organochlorine pesticide residues in tropical coastal environment of India: an overview.

Santosh Kumar Sarkar, +6 more
- 01 Oct 2008 - 
TL;DR: HCH and DDT residues in fish in India were lower than those in the temperate countries indicating a lower accumulation in tropical fish, which might be related to rapid volatilization of this insecticide in the tropical environment.
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Trace metal enrichments in core sediments in Muthupet mangroves, SE coast of India: Application of acid leachable technique

D. Janaki-Raman, +5 more
- 01 Jan 2007 - 
TL;DR: Comparison of acid leachable trace metals indicates increase in concentrations in the study area and the sediments act as a sink for trace metals contributed from multiple sources.
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Bioaccumulation of metals in fish species from water and sediments in macrotidal Ennore creek, Chennai, SE coast of India: A metropolitan city effect.

M. Jayaprakash, +5 more
- 01 Oct 2015 - 
TL;DR: Comparative studies with other coastal regions indicate considerable enrichment of DTMs & TTMs in sediments as well as in various organs of fish samples, which indicates that metals are absorbed onto the different organs, which is endorsed by the calculated values of bioaccumulation factor (BAFs) in fishes.
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Microplastics in tourist beaches of Huatulco Bay, Pacific coast of southern Mexico

I. Retama, +6 more
- 15 Dec 2016 - 
TL;DR: Overall, a high amount of microplastics is present in the Conejos, Tangolunda, Santa Cruz, and San Agustin beaches, mainly derived from tourism-based activities and effluents discharged from the hotels and restaurants located along the beaches.