1、Heavy metals concentrations in commercial organic fertilizers and the
Inductively coupled plasma mass spectrometry (ICP-MS) was used to detect heavy metals in 74 typical and representative commercial organic fertilizers (COFs) collected in major COF production...
2、Effect of uncontrolled fertilization and heavy metal toxicity
The paper mainly focuses on how the excessive use of chemical fertilizers are affecting the soil health as well as the water bodies by accumulating heavy metals (HMs) and other chemical elements present in them and the possible remediation measures.In adequate levels, all heavy metals are hazardous.
3、(PDF) Heavy Metal Content In Chemical Fertilizers and its Implications
In agriculture, chemical fertilizers are the chief source of heavy metals. The excess use of fertilizers in the cultivation process increases the residues of these metal ions in the...
4、Investigation of the incidence of heavy metals contamination in
Overuse of fertilizers on agricultural lands and fish ponds may result in serious pollution problems, such as heavy metals that can enter the food chain and pose serious health problems.
5、Heavy metal contaminants in inorganic and organic fertilizers
These heavy metals may accumulate in soil with repeated fertilizer applications. Cadmium (Cd) is the heavy metal of most concern because it may affect human health. Other heavy metals of possible significance are arsenic (As), chromium (Cr), lead (Pb), mercury (Hg), nickel (Ni), and vanadium (V).
Heavy metals in fertilizers and effect of the fertilization on heavy
This paper systematically reviewed the status of heavy metal contents in chemical fertilizers and manures, and effects of the fertilizers application on heavy metal accumulation in soils and crops.
Heavy metals in chemical fertilizer and environmental risks
Determination of concentrations of the total and soluble forms of Fe,Mn,Cu,Pb,Zn,Cd,and Hg in some chemical fertilizers used in the country was conducted.The results showed that in the nitrogenous fertilizers and potash fertilizers,the content of heavy metals is relatively low while in the compound fertilizers and phosphorus fertilizer it is ...
Heavy metals concentrations in commercial organic fertilizers and the
Inductively coupled plasma mass spectrometry (ICP-MS) was used to detect heavy metals in 74 typical and representative commercial organic fertilizers (COFs) collected in major COF production...
Metal Content Analysis: A Comprehensive Guide for Optimizing Fertilizer
1) Soil Toxicity: Excessive metal content in fertilizers can accumulate in the soil over time. When metal concentrations exceed tolerable limits, they can become toxic to plants, affecting growth, nutrient uptake, and yield potential.
Heavy metal content in chemical fertilizers
The repeated application of phosphate fertilizer results in high concentrations of toxic heavy metals in agricultural soil where concentration is typically low. ...
Boron fertilizers are critical agricultural inputs that enhance plants' nutrient absorption and growth. excessive heavy metal content in boron fertilizers can pose significant environmental and health hazards.
First, it is essential to understand what boron fertilizers and heavy metals are. Boron fertilizers contain elemental boron, which plants absorb to support photosynthesis and improve crop yields. Heavy metals, such as lead (Pb), mercury (Hg), cadmium (Cd), and arsenic (As), are toxic elements that accumulate in soil and resist degradation, leading to long-term ecological damage.
What constitutes "excessive" heavy metal content in boron fertilizers? This depends on national and industry-specific standards. Generally, if the heavy metal content exceeds legally defined thresholds, it is considered unsafe.
Taking China's standards as an example, according to the national standard GB/T23586-2009 (Methods for Determining Boron Content in Fertilizers), the permissible limits for heavy metals in boron fertilizers are:
- Lead (Pb): ≤ 0.2 mg/kg;
- Cadmium (Cd): ≤ 0.05 mg/kg;
- Mercury (Hg): ≤ 0.005 mg/kg;
- Arsenic (As): ≤ 0.01 mg/kg.
These limits balance agricultural needs with environmental protection. Exceeding them can harm both ecosystems and human health.
For instance, boron fertilizers with excessive lead may cause plants to absorb dangerous levels of lead, contaminating food sources. Lead is neurotoxic and can damage the nervous system, blood, and kidneys. Similarly, excess cadmium, mercury, or arsenic can bioaccumulate in soil and food chains, ultimately threatening human health. These metals persist in the environment and magnify in concentration as they move up the food chain.
Additionally, even if heavy metal levels meet regulatory standards, improper production methods—such as using contaminated raw materials or substandard manufacturing processes—can still result in unsafe products. Thus, selecting boron fertilizers requires verifying both compliance with standards and adherence to safe production practices.
whether heavy metal content in boron fertilizers is "excessive" depends on specific national or industry thresholds. Exceeding these limits risks environmental and public health. To ensure crop safety, environmental protection, and human well-being, always choose boron fertilizers that meet certified standards and prioritize products from reputable manufacturers.
