Anthropogenic nutrients have been shown to provide significant sources of nitrogen (N) that have been linked to increased primary production and harmful algal blooms worldwide. There is a general perception that in upwelling regions, the flux of anthropogenic nutrient inputs is small relative to upwelling flux, and therefore anthropogenic inputs have relatively little effect on the productivity...

The Anthropocene has led to global-scale contamination of the biosphere through diffuse atmospheric dispersal arsenic. This review considers sources arsenic soils and its subsequent fate, identifying key knowledge gaps. There is a particular focus on soil classification stratigraphy, as this central topic under consideration. For Europe North America, peat core chrono-sequences record massive e...

Cypress tree with blue green foliage and scaly reddish brown bark is planted throughout world as an ornamental plant. One of the newest ways for determining amount and kind of environmental pollutants is natural biomonitoring. The samples were obtained from three sites (heavy traffic, moderate traffic and control) in Isfahan during August-September and November-December 2013 and February-March ...

a r t i c l e i n f o The difference between the top of atmosphere shortwave clear sky (cloud and aerosol free, SWCLR) and aerosol sky radiative fluxes is known as direct radiative effect (DRE) for all aerosols or Direct Climate Forcing (DCF) for anthropogenic aerosols. There are several methods for calculating SWCLR including satellite-based methods and radiative transfer approaches. Since unc...

We implemented a tagged tracer method of black carbon (BC) into a global chemistry transport model, GEOSChem, examined the pathways and efficiency of long-range transport from a variety of anthropogenic and biomass burning emission sources to the Arctic, and quantified the source contributions of individual emissions. Firstly, we evaluated the simulated BC by comparing it with observations at t...

Loss of acoustic habitat due to anthropogenic noise is a key environmental stressor for vocal amphibian species, a taxonomic group that is experiencing global population declines. The Pacific chorus frog (Pseudacris regilla) is the most common vocal species of the Pacific Northwest and can occupy human-dominated habitat types, including agricultural and urban wetlands. This species is exposed t...

Fibrous sediments that originated from old pulp and paper industry emissions are recognized as a potential threat to the aquatic environment because they highly contaminated. In addition, biogenic degradation of organic material so-called “fiberbanks” has high produce greenhouse gases (GHG). this study, X-ray tomography, optical sensors gas analyzers were used identify quantify produced release...

Anthropogenic sound is created in the ocean both purposefully and unintentionally. The result is noise pollution that is high-intensity and acute, as well as lower-level and chronic. The locations of noise pollution are along well-traveled paths in the sea and particularly encompass coastal and continental shelf waters. Increased use of the sea for commercial shipping, geophysical exploration, ...

Introduction Conclusions References Tables Figures Back Close Abstract Introduction Conclusions References Tables Figures Back Close Abstract We use ground-based observations of CO mixing ratios and vertical column abundances together with tropospheric NO 2 columns from the GOME satellite instrument as constraints for improving the global annual emission estimates of CO and NO x for the year 19...