Analysis Water Quality of Springs on the East Slope of Mount Sumbing, Central Java, Indonesia for Sanitation Hygiene Purposes Based on the Physical and Chemical Properties

The eastern slope of Mount Sumbing has many springs used as a source of raw water for hygienic sanitation purposes. However, there has been no scientific research showing the quality of springs. Therefore the purpose of this study is to analyze the quality of springs on the eastern slopes of Mount Sumbing for community sanitation hygiene purposes based on water physical and chemical properties. Water samples were taken from several points in the study area and observed for physical parameters (TDS, smell, taste, and temperature) and chemical parameters (acidity, nitrate, fluoride, and sulfates). The results showed that from 30 samples of springs, only one spring fulfilled the Indonesia Minister of Health Regulation No. 32 in 2017. The spring located at STA 51 Kaliloro, Krajan, Kaliangkrik, Magelang Regency. There was a spring classified as deep geothermal groundwater and the others classified as shallow groundwater. Based on the acidity of water, most of the springs on the eastern slopes of Mount Sumbing could be used as hygiene sanitation by treating the water acidity and regulating the purposes of springs.

Characteristic differences between breeding places with and without Culex sp. larvae on lymphatic filariasis patient surroundings in an endemic area

Brebes Regency is one of the Lymphatic Filariasis (LF) endemic areas in Central Java Province, Indonesia. Ketanggungan Subdistrict, Bantarkawung Subdistrict and Paguyangan Subdistrict have the highest case numbers. Culex sp. is one of the vectors of LF in Java, Indonesia. This study was conducted to obtain information about the characteristics of the breeding places for Culex sp. in the area where people with LF live. The finding could be used as information with facts for society. It was a descriptive quantitative study with an observational design. The observation was conducted in a radius of 200 meters around the settlements of LF (15 patients) in three sub-districts in the Brebes Regency. Observed and measured data were larval density, water acidity, air temperature, air humidity, water flow, prominent flora presence, and prominent fauna presence. The breeding places observed were puddles, rivers, and sewers. Puddles and sewers with no aquatic animals were observed positively for the presence of Culex sp. larvae. The most preferred breeding place for Culex sp. in the study area were uncovered sewers.

Detection of Pseudomonas sp. in pirarucu (Arapaima gigas): a case report in the Western Amazon

Pirarucu (Arapaima gigas)is one of the most important fish in Amazonian fish farming. However, information about its nutritional, zootechnical and microbiological aspects is still scarce. This is especially true for the juvenile phase due to high mortality rates caused by malnutrition, difficulties in food training, endo and ectoparasite infestations, which in turn lead to immunosuppression, favoring secondary bacterial infections that may be present due to various environmental factors(e.g., sudden temperature variations, water acidity and pollution of the aquatic environment) and thestatus of fish. The Pseudomonas sp. species studied in this work is part of the aquatic ecosystem and is considered a contaminant or invader because it infects a wide variety of aquatic species, including pirarucu. Given this assumption, the objective of the study was to report a case of Pseudomonas sp.in the viscera and dorsum of a juvenile pirarucuArapaima gigas(SCHINZ, 1822) detected through bacteriological analysis. In the fish production chainin the Western Amazon, pirarucu is one of the most prominent fish species because of its high zootechnical performance in terms of weight gain and commercial value. However, one of the biggest obstacles in its production chain occurs during the juvenile phase, with high mortality rates caused by mainly bacterial infections, leading to economic losses in fish farming. In this study, Pseudomonas sp. was detected in a sample of dorsum and viscera of a pirarucu fish from a fish farm in the municipality of OuroPreto do Oeste, Rondônia, Brazil.

Monitoring Keasaman dan Kekeruhan Air menggunakan Mikrokontroler Berbasis Internet of Things

The quality and quantity standards of drinking water are tasteless and not cloudy. This study aimed to design the monitoring of water acidity and turbidity using a microcontroller based on the Internet of Things. The system device uses a pH sensor and a turbidity sensor to measure the water's edge and turbidity. The results show that the water acidity and turbidity monitor has been successfully designed using OLED and GSM displayed on the Thingspeak platform. This display shows the results of testing the pH value with an average accuracy level of 96.34% and the turbidity sensor 97.33%. The monitoring data transmission results using the GSM network to the Thingspeak platform were 95.83% in the first test and 90.97% in the second test.

Global modeling of cloud water acidity, precipitation acidity, and acid inputs to ecosystems

Cloud water acidity affects the atmospheric chemistry of sulfate and organic aerosol formation, halogen radical cycling, and trace metal speciation. Precipitation acidity including post-depositional inputs adversely affects soil and freshwater ecosystems. Here, we use the GEOS-Chem model of atmospheric chemistry to simulate the global distributions of cloud water and precipitation acidity as well as the total acid inputs to ecosystems from wet deposition. The model accounts for strong acids (H2SO4, HNO3, and HCl), weak acids (HCOOH, CH3COOH, CO2, and SO2), and weak bases (NH3 as well as dust and sea salt aerosol alkalinity). We compile a global data set of cloud water pH measurements for comparison with the model. The global mean observed cloud water pH is 5.2±0.9, compared to 5.0±0.8 in the model, with a range from 3 to 8 depending on the region. The lowest values are over East Asia, and the highest values are over deserts. Cloud water pH over East Asia is low because of large acid inputs (H2SO4 and HNO3), despite NH3 and dust neutralizing 70 % of these inputs. Cloud water pH is typically 4–5 over the US and Europe. Carboxylic acids account for less than 25 % of cloud water H+ in the Northern Hemisphere on an annual basis but 25 %–50 % in the Southern Hemisphere and over 50 % in the southern tropical continents, where they push the cloud water pH below 4.5. Anthropogenic emissions of SO2 and NOx (precursors of H2SO4 and HNO3) are decreasing at northern midlatitudes, but the effect on cloud water pH is strongly buffered by NH4+ and carboxylic acids. The global mean precipitation pH is 5.5 in GEOS-Chem, which is higher than the cloud water pH because of dilution and below-cloud scavenging of NH3 and dust. GEOS-Chem successfully reproduces the annual mean precipitation pH observations in North America, Europe, and eastern Asia. Carboxylic acids, which are undetected in routine observations due to biodegradation, lower the annual mean precipitation pH in these areas by 0.2 units. The acid wet deposition flux to terrestrial ecosystems taking into account the acidifying potential of NO3- and NH4+ in N-saturated ecosystems exceeds 50 meqm-2a-1 in East Asia and the Americas, which would affect sensitive ecosystems. NH4+ is the dominant acidifying species in wet deposition, contributing 41 % of the global acid flux to continents under N-saturated conditions.

Plant replacement trend in soft-water lakes with isoetids

A number of small, shallow inland lakes in the Northern Hemisphere are acidic, soft-water water bodies, mostly fed by precipitation. Some of these lakes are home to Lobelia dortmanna and other aquatic macrophytes from the isoetid group. The present study identifies a plant species replacement trend along the main environmental gradient in such lakes, i.e. pH of water.In 70 lakes covered by the study and ordered along the gradient of increasing alkalinity, bryophytes gradually decline. Their decreasing frequency is 86.8% (pH 4.0), 32.5% (pH 6.5) and <10% (pH 6.6–9.5). At the same time, the frequency of vascular plants increases from 13.2% in strongly acidic lakes up to 92.8% in alkaline ones. The majority of isoetids usually occur at pH 5.5–6.7, but one of them (Littorella uniflora) often (frequency 40.5%) occurs also in eutrophic, alkaline lakes (pH 9.0–9.5), where it forms large populations. In lakes ranked according to the decreasing alkalinity gradient, bryophyte populations have been found to be smaller, while vascular plants become more abundant. The decreasing water acidity leads to partial or total elimination of bryophytes, which are replaced by eutrophilic vascular plants, frequently accompanied by some stonewort species.

Design of Nutrition Automation on Lactuca Sativa NFT Hydroponic Systems

<p class="Abstract">This research focus on preserved nutrition on lettuce plants, as well as automation of other parameters that affect plant growth in NFT type hydroponic systems such as temperature, water acidity (pH), water level and light intensity. The automation of this hydroponic system includes the provision of nutrients according to the needs of plants by utilizing EC sensors, keeping the temperature of the water in accordance with plant specifications as well as water levels that are maintained.<em></em></p><p class="Keywords"> </p>

WATER QUALITY OF FISHING LOCATION OF SEPATUNG FISH (Pristolepis grootii) AT KELEKAR RIVER, OGAN ILIR REGENCY OF SOUTH SUMATERA

This study aims to determine the parameters of water quality at the fishing locations of the sepatung fish (Pristolepis grootii). Water quality is very influenced by environmental conditions. Kelekar River is one of the rivers located in the area of the flooded swamp area. The water quality characteristics of this river are very influenced by the condition of the surrounding swamps. Based on water acidity (pH) parameters, the quality of river water tends to be acidic, but the sepatung fish (P grootii) can live, grow and develop in this habitat. Water quality in natural waters habitats h can be used as a reference in the maintenance of fish in aquaculture media.