• The exposure to and contamination by Persistent Organic Pollutants (POPs), which include pesticides used worldwide and polyaromatic hydrocarbons, is detrimental to human health and diverse ecosystems. (datamed.org)
  • Perfluoroalkyl substances (PFAS) were among various persistent organic pollutants suspected to have been released during the collapse of the World Trade Center (WTC) on 9/11. (cdc.gov)
  • However, currently developed photoactivatable fluorophores based on conventional dyes have several limitations including reduced photoactivation efficiency, cytotoxicity, large molecular size, and complicated organic synthesis. (cdc.gov)
  • A Pyrethrum-based insecticides such as Bayer Natria Bug Control break down very quickly and are acceptable to organic gardeners. (which.co.uk)
  • Fulvic acid is actually an umbrella term used to talk about a group of organic acids, namely fulvic acids , which are classified as one of three types of humic substances that make up humus, the decomposing organic matter in soil. (majik.org)
  • Due to the negative charge of the organic acids that make humus up, it attracts many positively charged trace mineral ions (cations) like calcium, potassium and magnesium, allowing a healthy soil to retain its nutrients. (majik.org)
  • Sandy soil enriched with organic matter is ideal as is a pH of 6.0 to 6.5. (whiteflowerfarm.com)
  • One can view humus like a charged organic sponge that holds moisture and contributes to the stability, structure and nutrient-storing ability of healthy soils 1 . (majik.org)
  • It lives best in black steppe soils especially chernozem and kastanozem, rich in organic matter and calcium at pH levels between (7-9). (kenyon.edu)
  • Q Are there any organic options for aphids on apples and pears? (which.co.uk)
  • When cultural controls or friendly bugs aren't enough, organic, ready-to-use insecticidal soap spray suffocates aphids on contact. (hunker.com)
  • Levels of organic vapors and dibutyl- phthalate (84742) (less than 0.02mg/m3) during silkscreening were well below existing standards for exposure levels (Occupational Safety and Health Administration permissible exposure limit for dibutyl-phthalate, 5mg/m3). (cdc.gov)
  • Alongside fulvic acid, humus consists of two other organic acids: humin and humic acid. (majik.org)
  • Oxalate is a type of organic acid that causes the formation of stones. (trustedhealthadvice.com)
  • Caution is advised in the interpretation of urinary organic acid patterns that indicate a 3-hydroxydicarboxylic aciduria, as well as an inappropriate hypoketotic dicarboxylic aciduria, as they may represent non-specific findings. (faintpower.ga)
  • The chemical-physical characterization of the biogenic TeNRs reflected their thermodynamic stability that is likely derived from amphiphilic biomolecules present in the organic layer surrounding the NRs. (nature.com)
  • Like Earth, Titan has been found to accommodate liquid on its surface, that guide planetary scientists and astrobiologists to think that similar organic chemical procedures that led to life on Earth are happening in a glacial greasy compound of hydrocarbons on Titan. (affleap.com)
  • Journal of Chemical and Engineering Data, Vol.17, No. 1, 1972 Characterization of Lithium Sulfate as an Unsymmetrical-Valence Salt Bridge for the Minimization of Liquid Junction Potentials in Aqueous - Organic Solvent Mixtures by Cristiana L. faverio, Patrizia R. Mussini, and Torquato Mussini. (wikipedia.org)
  • Fortunately, several organic aphid-killing options protect the harvest. (hunker.com)