Results 31 to 40 of about 2,242,722 (338)

Marine Pollution [PDF]

open access: yesScience, 1971
In the editorial, "Marine pollution" (8 January 1971, page 21), the value given for the concentration of mercury found in tuna (paragraph 2, line 10, 0.5 x 10-6 part per billion) is incorrect. The correct value is 500 parts per billion.
openaire   +3 more sources

Reducing Penguin Pollution

open access: yes, 2013
The most common decay used for measuring 2beta_s, the phase of Bs-Bsbar mixing, is Bs -> J/psi phi. This decay is dominated by the colour-suppressed tree diagram, but there are other contributions due to gluonic and electroweak penguin diagrams.
ALAKABHA DATTA   +4 more
core   +1 more source

Rapid and Efficient Degradation of Ceftiofur Sodium by 5,6-Dimethylbenzimidazole-Modified ZIF(Fe/Co)x@CNF Nanocomposites

open access: yesJournal of Chemistry, 2023
The exploration of transforming various metals as metal sources into metal organic frameworks (MOFs) has attracted considerable attention in recent years. This study used triethylamine and 5,6-dimethylbenzimidazole (DMBIM) to modify the iron-doped cobalt
Hao Fu   +6 more
doaj   +1 more source

Emission Characteristics of Hazardous Air Pollutants from Construction Equipment

open access: yesAerosol and Air Quality Research, 2020
The emission characteristics of mobile air pollution sources belonging to the non-road sector have yet to be thoroughly investigated, especially when compared to those of on-road vehicles.
Sungwoon Jung   +9 more
doaj   +1 more source

Performance and mechanisms of enhanced hydrolysis acidification by adding different iron scraps: Microbial characteristics and fate of iron scraps

open access: yesFrontiers in Microbiology, 2022
HA, as one of low-carbon pre-treatment technology could be enhanced by packing of iron or iron oxide powder for enhancing the transformation of large molecular weight to generate volatile fatty acids (VFAs) for fuel production.
Yanqiong Wang   +4 more
doaj   +1 more source

Nephelometer Sensitivities for the Determination of PM2.5 Mass Concentration in Ambient and Indoor Air

open access: yesAerosol and Air Quality Research, 2020
Simple algorithms are presented for the relationships between the gravimetrically measured PM2.5 mass concentration and a nephelometer particle scattering coefficient, for three different environments: two outdoor locations (an urban and a suburban) and ...
Dimitra Karali   +2 more
doaj   +1 more source

Impact of Shutdown due to COVID-19 Pandemic on Aerosol Characteristics in Kanpur, India [PDF]

open access: yesJournal of Health and Pollution, 2020
Background. Since March 2020, the number of confirmed COVID-19 positive cases have steadily risen in India. Various preventive measures have been taken to contain the spread of COVID-19.
Nidhi Shukla   +4 more
doaj   +1 more source

Polluting Politics [PDF]

open access: yesSSRN Electronic Journal, 2015
This paper estimates the causal impact of party affiliation (Republican or Democrat) of U.S. governors on pollution. Using a regression discontinuity design, gubernatorial election data, and air quality data from U.S. Environmental Protection Agency (EPA), we find that pollution is lower under Democratic governors.
Louis-Philippe Beland, Vincent Boucher
openaire   +2 more sources

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

open access: yesFEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini   +2 more
wiley   +1 more source

Polychlorinated biphenyls in residential soils and their health risk and hazard in an industrial city in India

open access: yesJournal of Public Health Research, 2014
Background. Polychlorinated biphenyls (PCBs) have never been produced in India, but were used in industrial applications. PCBs have been detected in environmental samples since 1966, and their sources in soils come from depositions of industrial ...
Bhupander Kumar   +5 more
doaj   +1 more source

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