Temporal and spatial trends in acoustic detections of delphinid species around Niihau, Hawaii

2013 ◽  
Vol 134 (5) ◽  
pp. 3971-3971
Author(s):  
Julie N. Oswald ◽  
Whitlow W. L. Au ◽  
Marc O. Lammers ◽  
Michael F. Richlen ◽  
Thomas F. Norris
Keyword(s):  
Spatial Trends ◽  
Temporal And Spatial ◽  
Temporal And Spatial Trends

scholarly journals Temporal trends of halogenated flame retardants in the atmosphere of the Canadian Great Lakes Basin (2005–2014)

2018 ◽  
Vol 20 (3) ◽  
pp. 469-479 ◽  
Author(s):  
Chubashini Shunthirasingham ◽  
Nick Alexandrou ◽  
Kenneth A. Brice ◽  
Helena Dryfhout-Clark ◽  
Ky Su ◽  
...  
Keyword(s):  
Great Lakes ◽  
Flame Retardants ◽  
Temporal Trends ◽  
Great Lakes Basin ◽  
Spatial Trends ◽  
Temporal And Spatial ◽  
Temporal And Spatial Trends ◽  
Halogenated Flame Retardants ◽  
Air Concentrations

Temporal and spatial trends of total air concentrations (gas + particle) of halogenated flame retardants at the Canadian Great Lakes Basin were assessed (2005–2014).

scholarly journals Temporal and spatial trends in insecticide resistance in Anopheles arabiensis in Sudan: outcomes from an evaluation of implications of insecticide resistance for malaria vector control

2018 ◽  
Vol 11 (1) ◽  
Author(s):  
Bashir Adam Ismail ◽  
Hmooda Toto Kafy ◽  
Jihad Eltaher Sulieman ◽  
Krishanthi Subramaniam ◽  
Brent Thomas ◽  
...  
Keyword(s):  
Insecticide Resistance ◽  
Vector Control ◽  
Malaria Vector ◽  
Anopheles Arabiensis ◽  
Malaria Vector Control ◽  
Spatial Trends ◽  
Temporal And Spatial ◽  
Temporal And Spatial Trends

Distribution of mercury and methylmercury in the sediments of a lowland river system

2005 ◽  
Vol 461 (2057) ◽  
pp. 1335-1355 ◽  
Author(s):  
Jason W Birkett ◽  
John N Lester
Keyword(s):  
Point Source ◽  
Total Mercury ◽  
Sewage Treatment ◽  
River System ◽  
Initial Increase ◽  
Surficial Sediments ◽  
Spatial Trends ◽  
The Mean ◽  
Temporal And Spatial ◽  
Temporal And Spatial Trends

Concentrations of total mercury (T-Hg) and methylmercury (MeHg) were determined in surficial sediments from the River Yare, Norfolk, UK over the period 1986–1998, to assess the temporal and spatial trends of contamination arising from a historical point source discharge. The results demonstrate that the spatial distribution pattern follows that of a distinct pollution plume in the sediments with an initial increase 2–3 km downstream from the point source discharge at Whitlingham sewage treatment works (STW) outfall. Temporally, this pollution plume remains evident, although there has been an overall decline in the mean T-Hg concentrations from 5.4 in 1986 to 1.8 mg kg −1 in 1998. The major factor for this improvement has been the reduction in discharge of metals from the STW, together with burial by a fresh overlay of uncontaminated sediments. MeHg concentrations also exhibited a dispersed pollution plume. Mean concentrations of MeHg fluctuated during the study period between 3.3 and 8.5 μg kg −1 . There has been no concomitant decline in MeHg concentrations over this period. MeHg was found to constitute less than 1% of T-Hg concentrations in the sediments. The weak correlations observed between T-Hg and MeHg concentrations indicate external environmental factors have a significant influence on determining MeHg concentrations in the sedimentary compartment.

scholarly journals Long-term temporal and spatial trends in eutrophication status of the Baltic Sea

2015 ◽  
Vol 92 (1) ◽  
pp. 135-149 ◽  
Author(s):  
Jesper H. Andersen ◽  
Jacob Carstensen ◽  
Daniel J. Conley ◽  
Karsten Dromph ◽  
Vivi Fleming-Lehtinen ◽  
...  
Keyword(s):  
Baltic Sea ◽  
The Baltic Sea ◽  
Spatial Trends ◽  
Temporal And Spatial ◽  
The Baltic ◽  
Temporal And Spatial Trends

Temporal and spatial trends of perfluoroalkyl substances in liver of roe deer (Capreolus capreolus)

2012 ◽  
Vol 171 ◽  
pp. 1-8 ◽  
Author(s):  
Sandy Falk ◽  
Hubertus Brunn ◽  
Christa Schröter-Kermani ◽  
Klaus Failing ◽  
Sebastian Georgii ◽  
...  
Keyword(s):  
Roe Deer ◽  
Capreolus Capreolus ◽  
Perfluoroalkyl Substances ◽  
Spatial Trends ◽  
Temporal And Spatial ◽  
Temporal And Spatial Trends

An evaluation of temporal and spatial trends of pyrethroid concentrations in California surface waters

2020 ◽  
Vol 718 ◽  
pp. 137402 ◽  
Author(s):  
Robert Budd ◽  
Dan Wang ◽  
Michael Ensminger ◽  
Bryn Phillips
Keyword(s):  
Surface Waters ◽  
Spatial Trends ◽  
Temporal And Spatial ◽  
Temporal And Spatial Trends
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