scholarly journals KELIMPAHAN BAKTERI HETEROTROF DAN WATER QUALITY INDEX PADA KERAPATAN MANGROVE YANG BERBEDA DI DESA BEDONO, SAYUNG, DEMAK

2018 ◽  
Vol 6 (3) ◽  
pp. 215-221
Author(s):  
Silvia Silvia Grandies Alva W ◽  
Sutrisno Anggoro ◽  
Niniek Widyorini

ABSTRAK Serasah mangrove yang jatuh di lantai mangrove akan di dekomposisi oleh mikroorganisme heterotrof yang memiliki kemampuan mendegradasi serasah mangrove. Tujuan dari penelitian ini adalah mengetahui kerapatan mangrove, total bakteri heterotrof perairan pada beberapa kerapatan mangrove, Indeks Kualitas Air (IKA) serta hubungan kerapatan mangrove dengan total bakteri heterotrof dan Indeks Kualitas Air (IKA) perairan di Desa Bedono, Demak. Penelitian ini menggunakan metode deskriptif, dengan mengukur parameter pendukung yaitu parameter fisika dan kimia, dan melakukan perhitungan kelimpahan bakteri heterotrof menggunakan metode TPC (Total Plate Count). Hasil pengamatan menunjukan bahwa kelimpahan bakteri heterotrof tinggi berkisar antara (2.120-5.620) x 10-6 Cfu/ml pada saat pasang dan 760-4.840 x 10-6 Cfu/ml pada saat surut.. Berdasarkan hasil penelitian dapat disimpulkan bahwa kerapatan mangrove pada Desa Bedono berkisar antara 900-2.400 pohon/Ha; kelimpahan bakteri hetrotrof di Desa Bedono berkisar antara 760x 10-6 Cfu/ml – 5.620 x 10-6 Cfu/ml; Indeks Kualitas Air (IKA) yang didapatkan berkisar antara 33,1-46,93; terdapat hubungan yang berbanding lurus antara kelimpahan bakteri heterotrof dengan kerapatan mangrove, dan hubungan berbanding terbalik antara Indeks Kualitas Air (IKA), kelimpahan bakteri heterotrof dan kerapatan mangrove.                                                                                                                                          Kata Kunci: Bakteri Heterotrof, Kerapatan Mangrove, Desa Bedono, Indeks Kualitas Air ABSTRACT The mangrove litter that falls on the mangrove floor will be decomposed by heterotrophic microorganisms that have the ability to degrade the mangrove litter. This research is purposed to know the density of mangrove in Bedono, Demak; Looking for total heterotrophic bacteria in some mangrove densities in Bedono village, Demak; knowing Water Quality Index (IKA) in Bedono Village; know the relationship of mangrove density with total heterotrophic bacteria, and Water Quality Index (IKA) in Bedono Village, Demak.  This study uses a descriptive method, by measuring the supporting parameters of physical and chemical parameters, and calculating the abundance of heterotrophic bacteria using TPC (Total Plate Count) method. The observed results show the high abundance of heterotrophic bacteria ranging between (2.120-5.620) x 10-6 Cfu/ml at high tide and 760-4.840 x 10-6 Cfu/ml at low tide. Based on the results of the research can be concluded that the mangrove density in Bedono village ranged between 900-2.400 trees/Ha; The Water Quality Index (IKA) that occurs is between 33,1-46,93; There is a direct relationship between the abundance of heterotrophic bacteria with mangrove density, and the inverse relationship between the Water Quality Index (IKA), abundance of heterotrophic bacteria  and mangrove density.  Keywords: Heterotrophic Bacteria, Mangrove Density, Bedono Village, Water Quality Index

2017 ◽  
Vol 19 (2) ◽  
pp. 61 ◽  
Author(s):  
Meillisa Carlen Mainassy

Maluku is one of the archipelago province in Indonesia that has small pelagic fish resources with widespread distribution, such as lompa (Thryssa baelama Forsskål). One of lompa habitat in Mollucas is in Apui coastal areas. The presence of lompa depends on physical and chemical parameters in the waters. This study aims to determine the influence of physical and chemical parameters on the presence of lompa in Apui coastal area Central Mollucas. This study was conducted in June - July 2015. This research is ex-post facto using the value of Environmental Water Quality Index which refers to US-National Sanitation Foundation-Water Quality Index (NSF-WQI). Physical and chemical parameters measured include temperature, velocity, depth, brightness, salinity, pH and dissolved oxygen. The results of calculations with the Indeks Mutu Lingkungan Perairan (IMLP) are 95.61; 92,15; 88.61; 96,37; 93,76; 79.57. And the results of lompa fishing were 181, 162, 205, 173, 184, and 97 respectively. The research conclusion is that the Apui coastal areas are in good condition and potential as lompa habitat.


Water Quality Index (WQI) is a widely used technique in defining the quality of groundwater and finding whether it is advisable for human use. It is utmost necessary steps to understand the physical and chemical parameters defining the water quality for particular period and location using WQI calculation as it gives information in a single value. WQI has been calculated in twenty ground water samples collected from selected sampling stations at Madurai in the pre-monsoon, monsoon and post monsoon seasons. The water quality index values suggested that almost all the ground water samples were above 150, which indicated that they were unfit for drinking and one sample from Vilangudi had WQI less than 100 which indicated the water as poor category for drinking but could be used for irrigation purposes. The groundwater quality is also defined to be little better during post monsoon season in all the samples than during pre-monsoon and monsoon season.


2020 ◽  
Vol 13 (2) ◽  
pp. 91-107
Author(s):  
Obot Akpan IBANGA ◽  
◽  
Stephanie Emuobonuvie OHWO ◽  
Goodluck Mamuro OMONIGHO ◽  
◽  
...  

Swimming pools in guest houses and hotels in many cities in sub-Saharan Africa have been labelled ‘beautiful irritation’ or hazard zones for public health issues due to the unwholesomeness of water. Pollution in swimming pools is therefore, not uncommon and it is a serious public health issue both at the global, regional, national and local levels. This study focused on application of water quality index in assessment of swimming pools water quality in hotels in emerging Africa littoral metropolis of Warri, Delta State, Nigeria. It used stratified random sampling technique to select five hotels with swimming pool in Warri for assessment. Temperature, pH, turbidity, free (residual) chlorine, total heterotrophic bacteria, total heterotrophic fungi, Escherichia coli and Staphylococcus aureus tested in the laboratory using scientific method of sampling. Water quality index (WQI) was computed using Weighted Arithmetic Water Quality Index (WAWQI) to evaluate in general, the quality of water in each of the five sampled swimming pools. A five-point scale (excellent, good, poor, very poor and unsuitable) was used to rank each swimming pool quality. Result showed that Wellington Hotel had the value of 2.52 and considered excellent in terms of water quality index value. Also, Brook View and Best Western Plus Hotels were classified as good water based on water quality index values of 36.9 and 39.9 respectively while BB swimming pool was ranked poor due to water quality index of 51.4. In contrast, Oasis Place Hotel swimming pool was declared unsuitable for recreational purpose due to a water quality index of 102.1. The study recommended routine and periodic surveillance of swimming pools and other recreational water sources to guarantee optimum health and wellbeing of users.


2021 ◽  
Vol 8 (1) ◽  
pp. 17-23
Author(s):  
Nur Hanisah Abdul Malek ◽  
Nur Madihah Mohd Isa ◽  
Nurul Syazana Abdul Halim ◽  
Amal Najihah Muhamad Nor

Water quality change is caused by indirectly or directly sources such as human activities,uncontrolled sewage, or heavy metals and sediments. This study was conducted at two famousecotourism places in Jeli, Kelantan which are Lata Janggut and the new ecotourism place, LataKeding. The main objective of this study is to compare water quality index and heavy metals at thecascades. Twelve samples were collected from two points which are flowing water and stagnantwater in each cascade. Mann Whitney test was used to determine whether there are significantdifferences in concentration of each physical and chemical parameters between Lata Keding andLata Janggut. Spearman correlation was also used to determine the relationships between physicaland chemical parameters. This study found that Water Quality Index (WQI) in Lata Janggut is 69.07(Class III) and Lata Keding is 71.75 (Class III) which means that the water quality was slightlypolluted for both cascades. Therefore, Lata Janggut and Lata Keding require extensive treatment ifit will be used for water supply but still under control and safe to had body contact with the water.However, further monitoring are needed to avoid any environmental issues arise.


2021 ◽  
Vol 03 (01) ◽  
pp. 27-38
Author(s):  
Afrah S. MAHDI ◽  
Ban A ALRAZAQ ◽  
Miathem A SULTAN

Water quality index (WQI) is a unique value indicator used to assess overall water quality in a single term. [1]This study aims to assess the water quality of Shatt al Arab (south of Iraq) for drinking purposes for the period 2014-2018 using the weighted arithmetic WQIR method. Samples were taken from five monitoring stations on Shatt al Arab and fourteen physical and chemical parameters were analyzed. Spatial analyses were done using the Geographic Information System (GIS) to map the water quality index results. More river parts were found to be between good and poor qualities in 2014 whereas all of them were unsuitable for drinking in 2017 and 2018


This study is done to evaluate water quality of the Thamirabarani river, by using Water Quality Index method. The water quality index of the river water was done, by analyzing the physical and chemical parameters of water samples taken at seven locations in Jan 2017 to March 2017, along the through flow path of the river. The analysis results were compared with maximum permissible limit values recommended by WHO and BIS for drinking, irrigation and aquatic life. The water quality for Dinking was assessed utilizing the WQI technique. The computed WQI values in this study are found to be between 55.65 to 23.3(for drinking), 47.1 to 14.4 (for Irrigation) and 61.2 to 15.4(for Aquatic life).The results are indicates that, for the stretch of Tamirabarani where study was conducted, the water is suited for irrigation.


2017 ◽  
Vol 4 (2) ◽  
pp. 126
Author(s):  
Munandar Munandar ◽  
Neneng Marlian

This research aims to know the structure of the phytoplankton community in waters of PLTU Nagan Raya and to know the index of saprobitas based on the quality of waters in physics and chemistry of water. Research methods are laboratories where data research results obtained from the measurement results directly (in situ). The analysis conducted in the laboratory include identification and measurement of physical and chemical parameters of the water. The parameters in the observed in this research is phytoplankton abundance, diversity index, uniformity coefficient, saprobik, domination, phytoplankton, and water quality index. The results of the research there were 21 types of Phytoplankton Composition, from the 5th Division Cyanophyta, Euglenophyta, namely Chryshophyta, Bacillariophyta and Chlorophyta. The average phytoplankton abundance ranged from 20-72 cells/l, with an abundance of phytoplankton dominated Chryshophyta i.e. 42,66-2,66%. Judging from the average index of diversity IE 0-2.23; the uniformity that is 0-0.73; the dominance of 0 – 0.72; with saprobitas coefficients of phytoplankton ranges from 0.25 – 1.18 and average water quality index range 6.2466 – 63.6272; The result indicates the quality of the waters to provide moderate to very bad.


2018 ◽  
Vol 1 (2) ◽  
pp. 84-92
Author(s):  
Mohamad Ibrahim *

Groundwater quality is an issue of national concern in Jordan since it is the main water source for drinking, agriculture and industrial purposes. In this context, an attempt has been made to determine the suitability of groundwater in the Yarmouk Basin in Jordan for drinking purposes using the weighted arithmetic water quality index approach with the respect to the Jordanian standards for drinking water. Groundwater quality records from 15 sampling stations spread across Yarmouk Basin during 2008- 2015 are used. Seven physical and chemical parameters are selected to calculate the water quality index. These parameters are pH, total dissolved solids, total hardness, sulfates (SO4 −2 ), chlorides (Cl− ), nitrates (NO3 − ), and sodium (Na+ ). The relationship between the selected groundwater quality parameters is evaluated using the correlation coefficient. A strong relationship is found between several parameters such as Cl− with Na+ , total dissolved solids with Na+ , Cl− , TH and SO4 −2 and total hardness with SO4 −2. A moderate relationship is found between SO4 −2 with Na+ , TH with Cl− and Na+ , SO4 −2 with Cl− , Cl− with NO3 − and NO3 − with Na+ . Also, the mean concentration values of the physical and chemical parameters are almost below the maximum allowable level based on Jordanian standards for drinking except for two sampling locations. According to water quality index scale classification, the groundwater quality of the studied locations is in the excellent to poor water range with computed mean water quality index values range from 26.3 to 107.93. Out of 15 studied locations, ten locations are classified in the ‘Excellent water’ class, four locations as a “Good water” class, one as a “Poor water” class. None of the studied locations are classified in the “Very poor water” class and “Water unsuitable for drinking purpose” class. Temporal variations and spatial distribution of groundwater quality in Yarmouk Basin based on WQI are also evaluated. The WQI spatial distribution map clearly showed the best locations for drinking water in the Yarmouk Basin. Water quality indices are used to provide theoretical support to water managers and policymakers for proper actions on groundwater quality management


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