| 31. | Other contamination includes phthalates, lead, polycyclic aromatic hydrocarbons, DDT and heavy metals.
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| 32. | A principal synthetic application of Tiffeneau Demjanov ring expansion is to bicyclic or polycyclic systems.
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| 33. | Alternaria Black Spot is a polycyclic disease.
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| 34. | It is a useful reactions for forming six-membered rings and generating polycyclic compounds.
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| 35. | Among them are the polycyclic aromatic hydrocarbons, PAHs, which are known or suspected carcinogens.
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| 36. | The Red Rectangle is known to be particularly rich in polycyclic aromatic hydrocarbons ( PAHs ).
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| 37. | Polycyclic aromatic hydrocarbons released into the air from fracking has been linked to potential reproductive problems.
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| 38. | Bimodal polycyclic epidemics can also occur.
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| 39. | These polycyclic hydrocarbons also activate the AH receptor, but less than TCDD and only temporarily.
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| 40. | The primary measures include the replacement and disposal of soil contaminated with chlorinated polycyclic aromatic hydrocarbons.
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