Chemical Characteristics of Rainwater in Sumatera, Indonesia, during 2001–2010

Budiwati, Tuti; Setyawati, Wiwiek; Tanti, Dyah Aries

doi:10.1155/2016/1876046

Cited by 16 publications

(20 citation statements)

References 15 publications

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“…pH value: The results showed that the pH values of rainwater were higher (more alkaline) than those in some previous studies. In this study, the average pH range was from 8.15 to 8.5 while in the study of Tuti Budiwati et al (2016) [11], pH of rainwater was found to be more acidic, below 5 [13,14]. The reason why the rainwater pH value in 3 studied districts was more alkaline is probably due to the majority of storage tanks plastered brick cemented with materials containing CaCO 3 and Ca(OH) 2 .…”

Section: The Rainwater Characteristicsmentioning

confidence: 63%

Assessment of the Roof - Harvested Rainwater Quality in Some Suburb Districts, Hanoi, Viet Nam

Hà¹

2018

JST

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In this paper, the quality of roof harvested rainwater in Dan Phuong, Phuc Tho and Ung Hoa districts, Ha Noi city was assessed. Roof-harvested rainwater were taken in 2 campaigns (November 2015 and April 2016) then analyzed according to the QCVN 01:2009/BYT. The findings showed that in the studied districts, rainwater was collected from the tile, concrete, fibro cement and metal roofing, of which tile roof is the most common one which accounted for 65.6 %. The quality of roof-harvested rainwater in general was rather good. However, parameters including pH, permanganate value, total coliform and Ecoli did not meet the standards. nd campaign, respectively. In the 1 st campaign, the total coliforms and E.coli were detected in 75 and 72 % of the roof harvested rainwater samples, respectively; while in the 2 nd campaign these numbers were 62 and 38 %, respectively.

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Section: The Rainwater Characteristicsmentioning

confidence: 63%

Assessment of the Roof - Harvested Rainwater Quality in Some Suburb Districts, Hanoi, Viet Nam

Hà¹

2018

JST

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“…Simulated rainwater (50 mL, [40]) was added in order to mimic natural conditions and natural solubility of Si compounds after burning. Chemical characteristics of simulated rainwater corresponded to rainwater of Palembang, Sumatra [41] Table). In this study, we focused on monitoring Si release from samples, independently from environmental changes (e.g.…”

Section: Fire Treatment and Si Leachingmentioning

confidence: 99%

Transformation of Lowland Rainforest into Oil-palm Plantations and use of Fire alter Topsoil and Litter Silicon Pools and Fluxes

Lühe

Pauli

Greenshields

et al. 2020

Silicon

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The effects of land use and fire on ecosystem silicon (Si) cycling has been largely disregarded so far. We investigated the impacts of land use and fire on Si release from topsoils and litter of lowland rainforest and oil-palm plantations in Jambi Province, Indonesia. Lower concentrations of Si in amorphous silica (ASi) were found in oil-palm plantation topsoils (2.8 ± 0.7 mg g− 1) compared to rainforest (3.5 ± 0.8 mg g− 1). Higher total Si concentrations were detected in litter from oil-palm frond piles (22.8 ± 4.6 mg g− 1) compared to rainforest litter (12.7 ± 2.2 mg g− 1). To test the impact of fire, materials were burned at 300 °C and 500 °C and were shaken with untreated samples in simulated rainwater for 28 h. Untreated oil-palm topsoils showed a significantly lower Si release (p≤ 0.05) compared to rainforest. The fire treatments resulted in an increased Si release into simulated rainwater. Si release from oil-palm topsoils and litter increased by a factor of 6 and 9 (500 °C), respectively, and Si release from rainforest topsoils and litter by a factor of 3 and 9 (500 °C). Differences between land use were related to initial ASi and litter Si concentrations, and to losses of soil organic matter during burning. We conclude that transformation of rainforest into oil palm plantations could be an important and immediate Si source after a fire event but may indirectly lead to a decrease in the long-term Si availability to plants.

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“…The contamination which happens in the atmosphere can be caused by dust particles, microorganisms, and gasses such as NOx, COx and SOx. These pollutants are sourced from the emission of vehicles and industries and also can be sourced from the roof materials as the collector and container for rain water (4,5,7). The result of the analysis from some countries such as Palestine and Australia known that there dust particles especially in urban areas, hevy methal, bird waste, microorganisms, and physically has color and taste.…”

Section: Pb In Rain Watermentioning

confidence: 99%

“…Realizing that rain water is corrosive because it contains aggressive CO2 and low pH in Pontianak city was 4.78-5.85. (7) So that it's causing the tin roof easily rusted and possibility Pb coated to the roof dissolves and increases Pb in rain water. The low pH can affect the poisonous metal solubility found in rainwater containers (8).…”

Section: Introductionmentioning

confidence: 99%

“…Pb in rain water can be sourced not only on the tin roof but also caused by Pb exposure from the environment, for instance; industrial activities, vehicle emission, land clearing of farm land by fire and charcoal burning. Next, the pollutant of Pb particles turns into crystals and is dissolved by rain water (5,7), then it gets into rainwater harvesting system which is consumed as drinking water. In addition to Pb exposure, rain water has low pH and high turbidity level especially after few days without rain and it is stored directly.…”

Section: Introductionmentioning

confidence: 99%

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The Effectiveness of Mollusk Sand Filtration and Absorption of Active Carbon to Decrease Pb, Turbidity and pH in Rain Water and Its Correlation to Public Health in Pontianak

Khayan¹,

Husodo²,

Astuti³

et al. 2018

Preprint

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Pb found in rain water is not only caused by tin roof on houses but also caused by the pollution of industrial activities, vehicles and land clearing activity by fire. Pb pollutant dissolves and enters into rain water storages and it’s consumed as drinking. Pb can cause bad impact to human, for example disruption of enzyme, anemia and low intelligence. The purposes of this research are (1) to evaluate Pb, pH and turbidity level in rain water, (2) to analyze the effectiveness of mollusk sand filtration and the absorption of activity carbon to decrease Pb, turbidity and  pH, and (3) to analyze the correlation of Pb, length of stay and smoking habit on public health. This research is an experimental by using pre and post test designs with control and observational by using cross sectional design. The research was conducted in urban and rural areas of Pontianak and Kubu Raya regency. The sampling was done in determining the number of samples of Pb, pH and turbidity in rain water. The analyzing the data by using computer program. The results show that: (1) the average of Pb, pH and turbidity level before treatment is considered high at 131.7 µg/L on Pb, turbidity at 20 NTU and low pH at 5.2. After the treatment was the Pb has decreased to 0.71 µg/L and turbidity has to 5.66 NTU, pH to 6.9 and (2) Rain water treatment is very effective to decrease Pb for 99.4% and turbidity for 72%, and (3) there is a correlation among Pb found in rain water, length of stay and smoking activity to public health. Recommends that: the residents of Pontianak and Kubu Raya to process rain water before consuming. The rain water treatment can be done by applying mollusk sand filtration and absorption of active carbon.

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Chemical Characteristics of Rainwater in Sumatera, Indonesia, during 2001–2010

Cited by 16 publications

References 15 publications

Assessment of the Roof - Harvested Rainwater Quality in Some Suburb Districts, Hanoi, Viet Nam

Assessment of the Roof - Harvested Rainwater Quality in Some Suburb Districts, Hanoi, Viet Nam

Transformation of Lowland Rainforest into Oil-palm Plantations and use of Fire alter Topsoil and Litter Silicon Pools and Fluxes

The Effectiveness of Mollusk Sand Filtration and Absorption of Active Carbon to Decrease Pb, Turbidity and pH in Rain Water and Its Correlation to Public Health in Pontianak

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