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All Journal Journal of Environmental and Development Studies
Delvian
Faculty of Forestry, Universitas Sumatera Utara, Medan, 20155, Indonesia
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Environmental Science Social Sciences

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Journal : Journal of Environmental and Development Studies

 1 
Analysis of Organic and Conventional Lowland Rice (Oryza Sativa L) Cultivation Systems in Supporting Environmentally Friendly Agriculture in Beringin District, Deli Serdang Regency Ichfan Zulfansyah; Nini Rahmawati; Delvian
Journal of Environmental and Development Studies Vol. 2 No. 01 (2021): Journal of Environmental and Development Studies
Publisher : TALENTA Publisher, Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jeds.v2i1.6195

Abstract

The application of organic agriculture in lowland rice farming is one of the interesting topics in an effort to reduce environmental pollution caused by the use of chemical fertilizers and pesticides. This study aimed to determine the level of production and analyze the environmental impact of the soil from the application of organic and conventional agriculture in the Banyan District, Deli Serdang Regency. The results showed that 1) There was a significant difference between the production of harvested dry grain (GKP) of organic paddy and the production of harvested dry grain (GKP) of conventional lowland rice. 2) The level of soil fertility in organic and conventional lowland rice farming has low criteria
Feasibility Study: Kapah Clam (Meretrix lyrata) Consumption Based on the Amount of Heavy Metal Lead (Pb) in Pulau Labu, Deli Serdang Regency Sofyanurrazaq Sinuraya; Mukhlis; Delvian
Journal of Environmental and Development Studies Vol. 4 No. 2 (2023): Journal of Environmental and Development Studies
Publisher : TALENTA Publisher, Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jeds.v4i2.12498

Abstract

The hazardous heavy metal lead (Pb) can infiltrate the human body through the food chain. This study aimed to determine the maximum allowed amount of lead (Pb) and the lead heavy metal content in the meat of kapah clams (Meretrix lyrata) from Pantai Labu, Deli Serdang Regency, North Sumatra Province. This study used stratified random sampling in three locations: Bagan Beach, Muara Serdang, and Putra Deli. Heavy metal lead (Pb) measurements were conducted using the Parkin Elmer Atomic Absorption Spectrophotometry (AAS) method with an Atomic Absorption Spectrophotometer. Maximum Tolerable Intake (MTI) or Maximum Weekly Intake (MWI) is divided by the amount of heavy metal lead (Pb) in Kapah Clam meat (Meretrix lyrata) to determine the permissible consumption limit. As a result, exceeding the MTI limit can lead to toxicity.
Co-Authors Ichpan Zulfansyah Mukhlis Nini Rahmawati Sofyanurrazaq Sinuraya