Results 11 to 20 of about 2,493,169 (277)

A study on pollution emission flux estimation and tailwater for mariculture in the Tianjin, China [PDF]

open access: yesE3S Web of Conferences
With the rapid development of marine aquaculture in Tianjin, the methods and types of aquaculture are constantly evolving and changing. Due to the presence of large amounts of pollutants such as nitrogen and phosphorus in aquaculture wastewater, it has ...
Yuan Hui   +4 more
doaj   +1 more source

Determination of Silver in Soil and Stream Sediments by ICP-MS/MS with Four Collision/Reaction Modes

open access: yesYankuang ceshi, 2022
BACKGROUND It is difficult to accurately determine the content of Ag in soil and sediment due to the mass spectrum interference of niobium, zirconium oxide and hydroxide during inductively coupled plasma-mass spectrometry (ICP-MS) analysis. OBJECTIVES To
LIU Yue   +4 more
doaj   +1 more source

Extending sensor networks into the cloud using Amazon web services [PDF]

open access: yes, 2010
Sensor networks provide a method of collecting environmental data for use in a variety of distributed applications. However, to date, limited support has been provided for the development of integrated environmental monitoring and modeling applications ...
Hughes, D, Joosen, W, Lee, K, Murray, D
core   +2 more sources

Polybrominated diphenyl ethers (PBDEs) in sediment and fish tissues from Lake Chaohu, central eastern China

open access: yesArchives of Environmental Protection, 2015
Polybrominated diphenyl ethers (PBDEs) levels in environmental media have increased over the last 20-25 years in the world. In aquatic environments PBDEs were found to be accumulated along food chain and Endocrine disruptors toxicity. In this study PBDEs
Yang Suwen   +3 more
doaj   +1 more source

Simultaneous Determination of 51 Odorous Substances in Water by Headspace-Solid Phase Microextraction-Gas Chromatography/Triple Quadrupole Mass Spectrometry [PDF]

open access: yesZhipu Xuebao, 2023
A method of headspace-solid-phase microextraction-gas chromatography/triple quadrupole mass spectrometry was established for simultaneous determination of 10 types of 51 odorous substances in water. The effects of extraction head, extraction temperature,
LIU Jian-zhuo1   +4 more
doaj   +1 more source

Identification Of Environmental Variables For Use In Monitoring For The Evaluation Of The Rural Environment Protection Scheme [PDF]

open access: yes, 2005
Teagasc wishes to acknowledge the support of the Environmental RTDI Programme 2000–2006 in financing this research project.End of project reportThe aim of this study was to identify and select quantitative environmental attributes for a monitoring ...
Finn, John, Flynn, M., Kavanagh, B.
core   +2 more sources

Research on the Influence of Weather Patterns on Ozone Concentration: A Case Study in Tianjin

open access: yesAtmosphere, 2022
Ozone (O3) is an important secondary substance that plays a significant role in atmospheric chemistry and climate change. Although O3 is essential in the stratosphere, it is harmful to human health in the troposphere, where this study was conducted.
Yuan Li   +7 more
doaj   +1 more source

Monitoring environmental cleanliness on two surgical wards [PDF]

open access: yes, 2008
Ten hand-touch sites were screened weekly on two surgical wards over two consecutive six-month periods. The results were analysed using hygiene standards, which specify 1) an aerobic colony count (ACC) >2.5cfu/cm2, and 2) presence of coagulase-positive ...
Dancer, S.J., Robertson, C., White, L.F.
core   +1 more source

Spatio-temporal variation of vegetation and its correlation with soil moisture in the Yellow River Basin

open access: yesShuiwen dizhi gongcheng dizhi, 2023
Analyzing the temporal and spatial changes of vegetation and its correlation with soil moisture and quantitatively revealing the impact of soil moisture on vegetation growth are of certain significance for drought monitoring and ecological protection ...
Mengmeng GAO   +5 more
doaj   +1 more source

Comparator Design in Sensors for Environmental Monitoring [PDF]

open access: yes, 2018
This paper presents circuit design considerations of comparator in analog-to-digital converters (ADC) applied for a portable, low-cost and high performance nano-sensor chip which can be applied to detect the airborne magnetite pollution nano particulate ...
Fan, Hua   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy