Lead is a dangerous neurotoxin that can contaminate soil through industrial and automobile emissions. Small amounts of lead are naturally present in soil at low levels, but contamination from human sources can increase lead levels substantially. Vegetables can absorb excess lead from contaminated soils, especially leafy greens and root crops, posing a health risk. Actions like soil testing, planting fruit trees instead of vegetables, peeling root crops, and maintaining soil pH can help reduce lead uptake in home gardens. Lead poisoning in children remains a significant health problem.
A overview of the sources and effects of Air and Water Pollution in Bangladesh. Brief summary of Plastic and Micro Plastic Pollution and how substances created by these components affect the air and water harmfully. SDG goals of Bangladesh and how it is related to the betterment of our environment.
"Earthsoft Foundation of Guidance (EFG) is working as an NGO/NPO for students - Education & Career
guidance and for Professionals for soft skills enhancements. We are working speading , sharing
knowledge; experience globally.It has uploaded important presentations at http://myefg.in/downloads.aspx.
Also visit www.slideshare.net and search using key word - earthsoft
Read http://tl.gd/jm1gh5 and view picture http://twitpic.com/cept60
http://www.slideshare.net/rrakhecha/efg-activities-of-one-year27-mar2013
Be mentor using your education, knowledge & experience to contribute for a social cause & do conduct
free training/ workshop seeking help of existing platforms
Kindly spread to your friends.Thank you!
- Earthsoft Foundation of Guidance
Let us make earth little softer..
"
A overview of the sources and effects of Air and Water Pollution in Bangladesh. Brief summary of Plastic and Micro Plastic Pollution and how substances created by these components affect the air and water harmfully. SDG goals of Bangladesh and how it is related to the betterment of our environment.
"Earthsoft Foundation of Guidance (EFG) is working as an NGO/NPO for students - Education & Career
guidance and for Professionals for soft skills enhancements. We are working speading , sharing
knowledge; experience globally.It has uploaded important presentations at http://myefg.in/downloads.aspx.
Also visit www.slideshare.net and search using key word - earthsoft
Read http://tl.gd/jm1gh5 and view picture http://twitpic.com/cept60
http://www.slideshare.net/rrakhecha/efg-activities-of-one-year27-mar2013
Be mentor using your education, knowledge & experience to contribute for a social cause & do conduct
free training/ workshop seeking help of existing platforms
Kindly spread to your friends.Thank you!
- Earthsoft Foundation of Guidance
Let us make earth little softer..
"
Environmental science Module 2 Topic. This PPT is not a work of mine and was provided by our college professor during our graduation, so I am not sure about the original author. The credit goes to the Original author.
It is no secret that a majority of the world’s population consumes unclean water. But how does water get polluted? What happens to people or other living creatures when they consume contaminated water? The power point presentation that follows will allow the teacher to show his or her students the different ways water can get polluted, how much man is responsible for the extent of water pollution, and what the impact of this pollution is on all living things, especially man. The teacher can also use this presentation to generate a discussion in class on possible solutions to this problem. Is it possible to treat contaminated water in some way to make it consumable? Are there ways in which we can prevent or avoid at least certain kinds of water pollution?
This PPT contains definition, types, signs, source and effects of water pollution. Prevention of water pollution and some data of water pollution of world. It contains pictures so high school grade student can also go through this PPT. Although It is for Bachelor's level.
We all are familiar with the poisonous nature of lead metal .Sources of contamination , lead exposure pathways ,health effects, preventive strategies ,individual level strategies ,diagnosis , management ,preventive measures , treatment both after acute and chronic attacks are discussed . These all topics will help the Researchers , scholars , educators and learners in developing their basic concepts about the topic.
Environmental science Module 2 Topic. This PPT is not a work of mine and was provided by our college professor during our graduation, so I am not sure about the original author. The credit goes to the Original author.
It is no secret that a majority of the world’s population consumes unclean water. But how does water get polluted? What happens to people or other living creatures when they consume contaminated water? The power point presentation that follows will allow the teacher to show his or her students the different ways water can get polluted, how much man is responsible for the extent of water pollution, and what the impact of this pollution is on all living things, especially man. The teacher can also use this presentation to generate a discussion in class on possible solutions to this problem. Is it possible to treat contaminated water in some way to make it consumable? Are there ways in which we can prevent or avoid at least certain kinds of water pollution?
This PPT contains definition, types, signs, source and effects of water pollution. Prevention of water pollution and some data of water pollution of world. It contains pictures so high school grade student can also go through this PPT. Although It is for Bachelor's level.
We all are familiar with the poisonous nature of lead metal .Sources of contamination , lead exposure pathways ,health effects, preventive strategies ,individual level strategies ,diagnosis , management ,preventive measures , treatment both after acute and chronic attacks are discussed . These all topics will help the Researchers , scholars , educators and learners in developing their basic concepts about the topic.
Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of chemical substances or energy, such as noise, heat or light. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants.
PHYTOREMEDIATION OF CONTAMINATED SOILS (WAQAS AZEEM)Waqas Azeem
Metals contaminated soil are prevailing all over the world with different concentration. There is a need for a cost effective and environment friendly technique for the remediation of these soils, i.e. Phytoremediation...!
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdf
Lead Contamination in your Garden
1. Lead Contamination
Lead is an extremely stable element that is
categorised as a heavy metal. It is a dangerous
neurotoxin to humans and animals.
Small amounts of lead are naturally present in the soil and in vegetables, and should not cause
alarm. This is generally in the range of 15 to 40 parts lead to one million parts soil (ppm).
Through the addition of industrial lead pollutants, such as lead particles and chips from lead-based
paints, automobile emissions from leaded fuels, and other industrial sources, lead levels in
contaminated soil range from 500 ppm to over 3,000 ppm.
Soils near a busy road are typically 30 -2,000 ppm higher than soils in a natural area. Soils adjacent
to houses painted with exterior lead based paint may contain lead levels as high as 10,000 ppm.
Once soil has become contaminated with lead, which is not biodegradable, it remains a long term
source of lead exposure.
Impact on Fruit and Vegetable Growing
Vegetables can absorb excess lead from highly contaminated soils. Planting a vegetable garden
where rubbish was once dumped; on previous agricultural land; where there are nearby mines or
smelters; or where a house once stood (the concern here is primarily from lead-based paints which
were used prior to the 1950s), could all pose a hazard.
2. You can have your soil tested if you are concerned, but it can be costly (visit the website
www.nata.asn.au ).
CSIRO has found more pollution in leafy vegetables and root crops than fruiting plant produce (for
example, fruit trees, tomatoes, and peas and beans). This means that soils with more than 3000ppm
lead are deemed ok for fruit and grain crops, but not for leafy or root vegetables.
Vegetable gardens should be established away from busy roads – at least 20 to 80 metres away.
If you’re concerned about lead in your soil, consider taking these actions:
Peel root crops, such as potatoes and carrots, as most contaminants taken up from the soil ares
found in the skin of these plants.
Wash vegetables thoroughly. Discard older, outer leaves which absorb more lead.s
Maintain a soil pH of 6.5 to 7.0 and provide adequate phosphorus fertilisation to reduce leads
uptake from the soil.
Plant fruiting vegetables instead of leafy or root crops which take up more lead.s
Organic matter added to the soil helps tie up lead and makes it less available to plants.s
Mulch the soil to reduce blowing dust and to increase water retention.s
Children and Lead
Lead poisoning is one of the most common paediatric health problems in the United States. In 1985
the U.S. Center for Disease Control (CDC) defined childhood lead poisoning as occurring at blood
lead levels of greater than 25 ug/dL. This definition was revised down to 10 ug/dL, due to new
scientific evidence showing decreased intelligence and slower neurological development of children
with blood levels as low as 10 ug/Dl.
Leaded petrol was banned from sale in Australia in January 2002 and since then lead pollution from
the air has been declining.
Improve your Diet
3. A CSIRO study in 2003 found that a major pathway for copper, lead, cadmium, arsenic and DDT is
through the foodchain. A poor diet that is low in iron, calcium, calories, protein, zinc and vitamin C,
and high in fat, will increase the risk that you will absorb lead from your diet.
A further study documented how much some plants tend to take up heavy metals such as lead:
High uptake: lettuce, spinach, carrot, endive, cress, beet and silverbeet leaves
Moderate uptake: onion, mustard, potato, radish
Low uptake: corn, cauliflower, asparagus, celery, berries
Very low uptake: beans, peas, melon, tomatoes, fruit
Information Sources
Ohio State University ohioline.osu.edu/hyg-fact/1000/1149.html
University of Minnesota www.extension.umn.edu/distribution/horticulture/DG2543.html