Arsenic in garden soils and vegetable crops in Cornwall, England: Implications for human health

1985 ◽  
Vol 7 (4) ◽  
pp. 131-133 ◽  
Author(s):  
Jialin Xu ◽  
Iain Thornton
Keyword(s):  
Human Health ◽  
Vegetable Crops

scholarly journals Risk of Lead Exposure from Transport Stations to Human Health: A Case Study in the Highland Province of Vietnam

Toxics ◽  
2019 ◽  
Vol 7 (3) ◽  
pp. 48
Author(s):  
Le ◽  
Tran ◽  
Chen ◽  
Nguyen
Keyword(s):  
Human Health ◽  
Lead Exposure ◽  
Human Activities ◽  
Real Life ◽  
Absorption Spectrometry ◽  
Lead Contamination ◽  
Vegetable Crops ◽  
Gasoline Emissions ◽  
Bus Station ◽  
Soil And Water

Lead (Pb) is a heavy metal that negatively affects human health. Many studies have shown the relationship between lead exposure and various human activities, of which automobile service stations with gasoline emissions are considered the main cause. However, a limited number of studies have specifically considered lead exposure from automobile stations in Vietnam, as well as its impact on human activities and the surrounding natural resources. The objective of this study was to assess the possible risks of lead exposure to the surrounding agricultural and non-agricultural farms of a bus station located in the center of Dalat city, Lamdong province, Vietnam. To address this objective, 45 samples were collected from the soil, irrigated water resources, and vegetable crops of areas both close to and far away from the bus station. These samples were tested using the atomic absorption spectrometry technique. Our findings demonstrated higher lead concentration levels from all three types of samples collected from areas near the bus station. Of which, soil and water samples showed higher than normal exposure values of lead, but these were still under the allowed limits established by the Vietnam standard. Different from the soil and water, vegetable samples surrounding the bus station presented greater lead contamination than the permitted limit. High risk quotient (RQ) indexes were detected to point out that accumulative consumption of leaded vegetables over time could cause lead poisoning and harm human health. This study not only provides significant inferential evidence of the risk of lead exposure to agricultural activities and human health in Vietnam, but also delivers a real-life example for a real-world context.

scholarly journals 539 Assessing Soil and Water Thresholds for Potential Dietary Zinc Toxicity in Selected Vegetable Crops

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 488D-488
Author(s):  
X.E. Yang ◽  
X.X. Long ◽  
W.Z. Ni ◽  
E.W. Stover
Keyword(s):  
Human Health ◽  
Chinese Cabbage ◽  
Human Health Risk ◽  
Zinc Toxicity ◽  
Vegetable Crops ◽  
Soil Culture ◽  
Zinc Concentrations ◽  
Zn Tolerance ◽  
Edible Parts ◽  
Soil And Water

Vegetables play an important role in the human diet, and production in suburban areas has increased as populations have become more urbanized. However, heavy metal pollution of soils has enhanced in such areas, and metal accumulation in vegetables may pose a human health risk when consumed. Zinc is an essential micronutrient for plants and humans, but it is toxic to plants and humans at high levels. Although a maximum Zn tolerance for human health has been established for edible parts of vegetables (20 mg/kg DW), little information is available for predicting vegetable Zn concentration based on soil and water Zn levels. The objectives of this study were to determine the critical Zn concentrations in nutrition solution and soil to reach maximum Zn tolerance concentrations in Chinese cabbage, bok choy, and celery. Five Zn levels were used for both solution and soil culture experiments, with three replicates of each. Shoot growth was significantly inhibited at Zn concentrations above 50 mg/L in nutrition solution and above 180 mg/kg in soil. The sensitivity of crops to zinc toxicity, in term of shoot and root growth, decreased in the order: celery > Chinese cabbage > bok choy. Zinc accumulation in shoots and edible parts varied with Zn supply levels and type of vegetables. A negative correlation was noted between Zn accumulation and dry matter yields, with r-squared values of 0.980** for nutrient solution and 0.960* for soil culture. Zinc concentrations in shoots or edible vegetable parts were below 20 mg/kg (human health threshold) when they were grown at DTPA extractable Zn in the soil less than 75, 100, and 175 mg/kg for bok choy, celery, and Chinese cabbage, respectively.

scholarly journals A review on heavy metal accumulation and toxicity in biotic and abiotic components

2021 ◽  
Vol 889 (1) ◽  
pp. 012062
Author(s):  
Manmeet Kaur ◽  
Akriti Sharma ◽  
Aditya
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Human Health ◽  
Metal Accumulation ◽  
Anthropogenic Activities ◽  
Nutrient Status ◽  
Heavy Metal Accumulation ◽  
Metal Exposure ◽  
Vegetable Crops ◽  
Polluted Soils

Abstract Pollutants in the environment remains to be a global issue and among the greatest challenges confronting mankind. Among the various kinds of pollutants, heavy metals have drawn a lot of attention owing to their toxicity. Heavy metals are recognized to be naturally existing, however they are introduced in considerable quantities in many environmental compartments due to anthropogenic activities. When added into the atmosphere eventually these find their way back to the ground, contaminating soils and water. These metals enter into the plant system through a variety of physiological mechanisms, affecting plant growth and development. The possible entry of these elements into the ecosystem has been attributed to the increased levels of heavy metals in the ecosystem through direct intake from polluted soils, vegetables grown on polluted soils, or drinking wastewater that has infiltrated through such soils. Heavy metal accumulation arises when vegetable crops are grown in an environment contaminated with heavy metal, further entering and magnifying in the food chain. Human health is jeopardised by the presence and consumption of potentially harmful heavy metals in biota and groundwater. Heavy metal exposure can cause a number of serious human health implications, including kidney disease, respiratory problems, neurological disorders, and cancer. These heavy metals have an impact not merely on plants and humans, but also on soil health, water sources, soil nutrient status, and other aquatic organisms. These are irreversibly introduced in the environment since they cannot be degraded and are typically present in trace amounts, yet even at low levels, many of them can be harmful. The increased levels of heavy metals in the environment are hence currently prompting increased concern and need improvised remedial measures.

scholarly journals Use of pesticides and its residue on vegetable crops in Nepal

2015 ◽  
Vol 16 ◽  
pp. 33-42 ◽  
Author(s):  
Dilli Ram Sharma
Keyword(s):  
Human Health ◽  
Field Survey ◽  
Residue Analysis ◽  
Vegetable Crops ◽  
Expiry Date ◽  
Face To Face ◽  
Awareness Programs ◽  
Field Information ◽  
Pesticides Residue ◽  
Safety And Environment

Farmer field survey and lab residue analysis studies were carried out to examine the use of pesticide in vegetable fields and its potential effects on human health and environment. Field information were collected using semi-structured questionnaires face to face interview with 200 farmers from three districts (Bara, Dhading and Kavre) of central region of Nepal. The recent study showed that the use of chemical pesticides in Nepal is 0.396Kg a.i./ha. The farmers' field survey showed that 72 percent of the farmers paid attention on acquiring information about the effectiveness of pesticide to control the target pests. While 65 percent of the farmers noticed the expiry date of pesticides, and only a few farmers considered the adverse effects of pesticide on human health and environment. The result showed that majority of them (51.5%) kept the remaining pesticides in their house freely, whereas 23.5 percent farmers destroyed the remaining pesticides; either buried or burnt. It was also found that 22.5 percent of farmers did not care and threw the remaining pesticides outside the house and in the fields. Residues analysis of 75 samples of 13 vegetables indicated that 58%t of the vegetable samples contained no detectable level (NDL) of the monitored pesticides, 38% samples resulted in trace level of the pesticides residue or below the minimum residue level (MRL), while 4% samples showed above MRL (EU Standard). Present study revealed ample scope for improvement on pesticide use and exposure, for which there is need of strong policy implementation, strengthening training, extension services and various awareness programs to farmers and agro-vets for judicious use of pesticides, health safety and environment protection.

scholarly journals Biochar Affects Essential Nutrients of Carrot Taproots and Lettuce Leaves

HortScience ◽  
2020 ◽  
Vol 55 (2) ◽  
pp. 261-271 ◽  
Author(s):  
David M. Olszyk ◽  
Tamotsu Shiroyama ◽  
Jeffrey M. Novak ◽  
Keri B. Cantrell ◽  
Gilbert Sigua ◽  
...  
Keyword(s):  
Human Health ◽  
Inductively Coupled Plasma ◽  
Soil Amendment ◽  
Crop Yields ◽  
Sandy Loam ◽  
Nutrient Concentrations ◽  
Vegetable Crops ◽  
Plasma Analysis ◽  
Inductively Coupled ◽  
Essential Nutrient

Essential nutrient concentrations in crops can affect human health. While biochar has the potential as a soil amendment to improve crop yields, it may also affect the concentrations of nutrients such as Ca, Fe, K, Mg, Mn, and Zn in edible portions of crops. To better characterize effects of biochar on important human nutrients in food crops, we evaluated the effects of biochar on lettuce (Lactuca sativa L. cv. Black-Seeded Simpson) leaf and carrot [Daucus carota subsp. sativus (Hoffm.) Schübl. cv. Tendersweet] developing taproot nutrients. Plants were grown in pots in a greenhouse using sandy loam (Coxville, fine, kaolinitic, thermic Typic Paleaquults) and loamy sand (Norfolk, fine-loamy, kaolinitic, thermic Typic Kandiudults,) series soils, amended with biochar produced from four feedstocks: pine chips (PC), poultry litter (PL), swine solids (SS), and switchgrass (SG); and two blends of PC plus PL [PC/PL, 50%/50% (55) and 80%/20% (82) by weight]. Biochar was produced at 350, 500, and 700 °C from each feedstock. Lettuce leaf and carrot taproot total nutrient concentrations were determined by inductively coupled plasma analysis. Biochar (especially at least in part manure-based, i.e., PL, SS, 55, and 82 at nearly all temperatures) primarily decreased nutrient concentrations in lettuce leaves, with Ca, Mg, and Zn affected most. Carrot taproot nutrient concentrations also deceased, but to a lesser extent. Some biochars increased leaf or taproot nutrient concentrations, especially K. This study indicated that biochar can both decrease and increase leaf and taproot nutrient concentrations important for human health. Thus, potential effects on nutrients in plants should be carefully considered when biochar is used as a soil amendment with vegetable crops.

Lycopene alleviates sulfamethoxazole-induced hepatotoxicity in grass carp (Ctenopharyngodon idellus) via suppression of oxidative stress, inflammation and apoptosis

2020 ◽  
Vol 11 (10) ◽  
pp. 8547-8559
Author(s):  
Hongjing Zhao ◽  
Yu Wang ◽  
Mengyao Mu ◽  
Menghao Guo ◽  
Hongxian Yu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Secondary Metabolites ◽  
Human Health ◽  
Grass Carp ◽  
Aquatic Environment ◽  
Ctenopharyngodon Idellus

Antibiotics are used worldwide to treat diseases in humans and other animals; most of them and their secondary metabolites are discharged into the aquatic environment, posing a serious threat to human health.

Emerging Nutrition Gaps in a World of Affluence - Micronutrient Intake and Status Globally

2011 ◽  
Vol 81 (4) ◽  
pp. 238-239 ◽  
Author(s):  
Manfred Eggersdorfer ◽  
Paul Walter
Keyword(s):  
Developing Countries ◽  
Human Health ◽  
Old Age ◽  
Molecular Basis ◽  
Health Benefit ◽  
Developed Countries ◽  
Micronutrient Deficiencies ◽  
New Science ◽  
Health And Nutrition ◽  
Micronutrient Intake

Nutrition is important for human health in all stages of life - from conception to old age. Today we know much more about the molecular basis of nutrition. Most importantly, we have learnt that micronutrients, among other factors, interact with genes, and new science is increasingly providing more tools to clarify this interrelation between health and nutrition. Sufficient intake of vitamins is essential to achieve maximum health benefit. It is well established that in developing countries, millions of people still suffer from micronutrient deficiencies. However, it is far less recognized that we face micronutrient insufficiencies also in developed countries.

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