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Lestari, Retno Puji; Nasution, Riri Indriyani; Budiwati, Tuti; Rachmawati, Emaliya; Indrawati, Asri Indrawati

doi:10.20886/jklh.2018.12.2.71-82

Cited by 2 publications

(2 citation statements)

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“…The measurement in these regions have revealed pH values of 4. 86, 4.71, 5.39, and 4.93, respectively, which are lower than the standard pH value of rainwater (5.6) (Lestari et al, 2018). The ion analysis results show compositional differences in several areas, such as in Serpong (sub-urban), where NH4 + and SO4 2ions come from emissions from agriculture and motorized vehicles; while Jakarta (urban) shows NH4 + and SO4 2ions originating from motor vehicles and industrial emissions.…”

Section: Introductionmentioning

confidence: 79%

“…This has resulted in the trapping of pollutants around the Greater Bandung Basin because the topography is blocked horizontally, and the inversion layer is vertical. Previous research in the area from 2008-201 found acid rain with a pH value of 5.30, and high level of NH4 + and SO4 2 ions stemming from motor vehicle and industrial emissions (Lestari et al, 2018).…”

Section: Introductionmentioning

confidence: 90%

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Effect of Rainfall on the Chemical Composition of Rainwater in Monitoring Acid Deposition in Greater Bandung

Rievaldo

Chandra

Setyawati

et al. 2023

indones. j. urban. environ. technol.

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Aim: The study aimed to investigate the impact of rainwater on the acidity levelsto monitor acid deposition and identify sources of pollutant that affect the acidity concentrations of rainwater. Methodology and Results: One unit of rainwater sampler in each location was employed, andsamples were taken to the National Research and Innovation Agency laboratory (BRIN) for analysis of rainwater quality including acidity/pH degree, conductivity, and ion concentrations. The results show that high rainfall intensity (>300 mm/month) in April and December 2019 led to a decrease in electrical conductivity (<10 mS/cm) and ion compounds (>200 μmol/L) of rainwater, likely due to the dissolution/washing process of anions in the air during the rainy season and acid and alkaline neutralization in the dry season. The most identified chemical compounds were ammonium (NH4+), sulfate (SO42-), nitrate (NO3-), and salt (NaCl). Conclusion, significance, and impact study: Based on back-trajectory projections, the decline in rainwater quality was attributed to both local emissions (transportation, industry, agriculture, and waste burning) and long-range sources (earth crust, oceans, coastlines, marine activities, and anthropogenic and forest fires in the Australian territory).

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Section: Introductionmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 90%

Effect of Rainfall on the Chemical Composition of Rainwater in Monitoring Acid Deposition in Greater Bandung

Rievaldo

Chandra

Setyawati

et al. 2023

indones. j. urban. environ. technol.

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Malaria Incidence Trends and Their Association with Climatic Variables in East Kalimantan, Indonesia, 2014–2020

Ridha¹,

Indriyati

Juhairiyah³

et al. 2022

JKL

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Introduction: Malaria is still a worldwide health problem, which includes Indonesia. Vector-borne diseases are climate-sensitive and this has raised extended concern over the implications of global climate change on future disease risk. This study aims to analyze the relationship between climate factors and malaria cases in East Kalimantan Province as an illustration to assist the malaria elimination program. Methods: Laboratory confirmation of malaria cases 2014-2020 was analyzed for trends derived from the E-Sismal data. Decomposition analysis was performed to assess seasonality. Climatic data (humidity, temperature, and rainfall) were analyzed with the incidence of malaria using Spearman rank correlation and model analysis with Poisson regression. Results and Discussion: The API value did not decrease significantly, which was only 0.07% from 2014 to 2020, but there was a change in the number based on the type of parasite from Plasmodium falciparum to vivax, which means that program intervention efforts have occurred, while Plasmodium vivax can relapse. There was a seasonal trend decomposition of monthly Plasmodium falciparum and Plasmodium vivax from December to March. Relative humidity shows a positive correlation while monthly temperature shows a negative correlation with P. vivax malaria cases each month. Conclusion: The outputs from this study are going to be useful at numerous levels of decision-making, for example, in fitting associate early warning and property methods for temperature change and climate change adaptation for malaria infection management programs in East Kalimantan.

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Cited by 2 publications

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Effect of Rainfall on the Chemical Composition of Rainwater in Monitoring Acid Deposition in Greater Bandung

Effect of Rainfall on the Chemical Composition of Rainwater in Monitoring Acid Deposition in Greater Bandung

Malaria Incidence Trends and Their Association with Climatic Variables in East Kalimantan, Indonesia, 2014–2020

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