Results 41 to 50 of about 606,215 (118)

Development and validation of a green/blue UHPLC-MS/MS method for trace pharmaceutical monitoring

open access: yesScientific Reports
In response to the growing concerns regarding pharmaceutical contamination of our aquatic systems, targeted actions are being implemented to align with the recommendations of the European Commission.
Marta Koziarska   +2 more
doaj   +1 more source

A Comparison of In Vitro Points of Departure with Human Blood Levels for Per- and Polyfluoroalkyl Substances (PFAS)

open access: yesToxics
Per- and polyfluoroalkyl substances (PFAS) are widely used, and their fluorinated state contributes to unique uses and stability but also long half-lives in the environment and humans.
Richard S. Judson   +14 more
doaj   +1 more source

Microbial activity in different soils in response to metribuzin treatment [PDF]

open access: yesPesticidi i Fitomedicina, 2019
The effect of metribuzin on soil microorganisms and their enzymatic activity, as well as the amount of metribuzin residues, greatly depend on the type of soil and its physico-chemical properties.
Šantrić Ljiljana   +4 more
doaj  

基于超声-碱组合技术的污泥趋零排放AO工艺运行效果

open access: yesJingshui jishu
【目的】本文旨在通过超声-碱组合技术破解污泥,实现缺氧-好氧(AO)工艺的污泥趋零排放,并考察其在小试规模下的污染物去除效果和出水水质。【方法】采用超声-碱组合技术(初始pH值为12,声能密度为1.6 W/mL,超声时间为70 min,脉冲比为2∶1)破解剩余污泥,并将其回用于处理实际污水的AO系统中。为了降低破解液回用对出水水质的影响和进一步提高总氮(TN)的去除率,通过延长好氧池水力停留时间(12.0 h延长至14.4 h)和适量投加外加碳源[乙酸钠(NaAc),800 mg ...
Chen Yupeng   +6 more
doaj   +1 more source

CONFERENCES REGARDING ENVIRONMENTAL PROTECTION [PDF]

open access: yesAnalele Universităţii Constantin Brâncuşi din Târgu Jiu : Seria Economie, 2015
The international community decided to resolve the issues regarding the environment through collective measures at a global level, which it tried to define and apply through the use of a proper international framework.
DOBRESCU M. EMILIAN   +1 more
doaj  

Design of emergency expansion project for sewage treatment plant with multi process coupling control

open access: yesGongye shui chuli
The emergency rescue and expansion project of sewage treatment plants has always been a difficult point in the water treatment industry, especially the coupling regulation of multiple processes brings greater risks and uncertainties to emergency rescue ...
WU Qiwen   +7 more
doaj   +1 more source

Salivary Antibody Responses to Potentially Waterborne and Environmentally Transmitted Infections Among Two Tribal Nations in the Southwest United States

open access: yesJournal of Epidemiology and Global Health
Purpose Tribal Nations disproportionately lack access to safe drinking water and can be adversely affected by other water quality and environmental concerns.
Timothy J. Wade   +11 more
doaj   +1 more source

Machine learning for land use change analysis in environmental protection areas. [PDF]

open access: yesEnviron Monit Assess
Lizcano Toledo MV   +7 more
europepmc   +1 more source

Air pollution and respiratory outcomes in COPD above and below current environmental protection agency standards. [PDF]

open access: yesEnviron Epidemiol
Myers LC   +9 more
europepmc   +1 more source

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