Use of various statistical techniques to assess the vertical and lateral change in the groundwater chemistry of Quaternary aquifer in an irrigated highly populated area

Groundwater is an eco-environmental factor and critical resource required for human life and socioeconomic development. Understanding the evolution of groundwater chemistry and its controlling factors are imperative for preventing its deterioration and ensuring its sustainable use. We studied the characteristics of groundwater chemistry in the Huangshui River Basin in Qinghai Province, China using hydrochemical techniques. Additionally, we identified the controlling factors of groundwater chemistry in this region using multivariate statistical techniques. Seventeen hydrochemical parameters of groundwater were investigated at 156 sites in June 2019. The results showed that total hardness, Fe, NO3−, SO42−, and Cl− were primary pollution factors of groundwater in this region, and that 33.3%, 35.3%, 8.97%, 23.1%, and 7.69% of the samples exceeded Grade III standards for groundwater quality in China, respectively. Land use types also significantly affected groundwater hydrochemistry. The hydrochemical composition of groundwater in industrial areas is more strongly influenced by human activities. The major hydrochemical types identified in the region were HCO3-Ca·Mg and HCO3·SO4-Ca·Mg. Additionally, high proportions of SO4 (50.6%), Na (32.1%), and Cl (13.5%) groundwater types revealed the influence of anthropogenic activities on the groundwater hydrochemistry. Rock weathering was the major factor influencing the groundwater hydrochemistry, while evaporation–condensation and anthropogenic activities also influenced the hydrochemical characteristics of groundwater. The hydrochemical composition of groundwater was mainly controlled by silicate rock weathering. The main controlling factors of groundwater hydrochemistry were water–rock interactions, “physicochemical” factors (nature processes), domestic sewage, chemical fertilizer, and industrial sewage (human activities).

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99. The Use of Statistical Techniques in the Performance Evaluation of Workplace Air Monitors and Their Application to the Development of a Paper-Tape Monitor for Hexamethylene Diisocyanate (HDI) with Minimal Cross Sensitivity to Water Vapor and Atmospheric Oxidants

10.3320/1.2765608 ◽

1999 ◽

Author(s):

C. Gardner ◽

P. Rutkowski ◽

J. D'Arcy

Keyword(s):

Performance Evaluation ◽

Water Vapor ◽

Paper Tape ◽

Hexamethylene Diisocyanate ◽

Statistical Techniques ◽

Cross Sensitivity ◽

Workplace Air

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GROUNDWATER CHEMISTRY OF SHALLOW AQUIFERS IN THE COASTAL ZONES OF COCHIN, INDIA

Applied Ecology and Environmental Research ◽

10.15666/aeer/0301_133139 ◽

2005 ◽

Vol 3 (1) ◽

pp. 133-139 ◽

Cited By ~ 35

Author(s):

C.M. Laluraj

Keyword(s):

Groundwater Chemistry ◽

Coastal Zones ◽

Shallow Aquifers

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PEMANFAATAN MARKA JALAN UNTUK MENGATUR BATAS TERITORIAL PERILAKU PADA PASAR MINGGU PAGI (SUNDAY MORNING MARKET) UNIVERSITAS GADJAH MADA YOGYAKARTA (Studi Kasus : Jalan Olahraga Universitas Gadjah Mada Yogyakarta)

Jurnal Arsitektur KOMPOSISI ◽

10.24002/jars.v10i6.1096 ◽

2017 ◽

Vol 10 (6) ◽

pp. 375 ◽

Cited By ~ 1

Author(s):

David Ricardo

Keyword(s):

Qualitative Methods ◽

Personal Space ◽

The Other ◽

Sunday Morning ◽

Populated Area ◽

Behavior Setting ◽

Other Hand ◽

Data Field ◽

Territorial Division ◽

Gathering Data

Abstract: This Research is one of methods to figure out the benefits from the use of marking road. A special handling is needed to the violations of Marking Road especially for populated area that located on lack of attention area. Sunday morning market of University of Gadjah Mada has tight activities every Sunday morning and Olahraga street is the study sample that represent other streets. This research using qualitative methods by gathering data field and interview to obtain results such as site size, history, behavior setting, behavior mapping, and personal space. The use of marking road must be related to territorial division of activities such as function and activity that is happening. Territory happened through a different process every its object. There are two divisions of territory for Sunday Market Morning that are Primary Territory and Secondary Territory. Primary Territory includes kiosk traders, parking attendants, and visitors. On the other hand, Secondary territory is a space that is used together such as secondary road or the divisor road. After the division of territories is obtained then the data is analyzed to get some alternatives. The alternatives are compared to get the pattern of territories that can be arranged through the use of Marking Road.Keywords: Marking Road, Territorial, Sunday Morning Market of Gadjah Mada University Abstrak: Penelitian ini merupakan salah satu cara untuk mengetahui manfaat dari penggunaan marka jalan. Pelanggaran terhadap marka jalan perlu penanganan khusus terutama daerah-daerah padat yang terdapat pada jalur jalan lingkungan yang kurang menjadi perhatian. Pasar Minggu Pagi (Sunday Morning Market) Universitas Gadjah Mada Yogyakarta termasuk memiliki kegiatan padat setiap minggu pagi dan jalan olahraga sebagai sampel penelitian mewakili jalan yang lain. Penelitian ini menggunakan metode kualitatif dengan mengumpulkan data lapangan dan wawancara sehingga mendapatkan data seperti ukuran site, sejarah, behavior setting, behavior mapping, dan personal space. Penggunaan marka jalan pasti berhubungan dengan pembagian batas teritori kegiatan seperti fungsi dan aktivitas yang terjadi. Teritori terjadi melalui proses yang berbeda-beda tiap objeknya. Pada Sunday Morning Market terdapat pembagian dua teritori yaitu primary territory dan secondary territory. Primary territory meliputi pedagang kios, pelaku parkir, dan pengunjung. Sedangkan secondary territory merupakan ruang yang dipakai bersama seperti jalan sekunder ataupun jalan pembagi. Setelah didapatkan pembagian teritorinya maka dianalisis dan mendapatkan beberapa alternatif. Alternatif tersebut dibandingkan sehingga mendapatkan pola teritori yang dapat diatur melalui penggunaan marka jalan.Kata kunci: Marka Jalan, Teritorial, Pasar Minggu Pagi Universitas Gadjah Mada

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