Question

1.1 Activation Lee cuidadosamente el siguiente párrafo acerca de la contaminación atmosférica ambiental (contaminantes primarios y secundarios) y responde las preguntas que se te presentan. Ambient Air Pollution Pollutants are categorized into two types: primary and secondary. Primary pollutants are directly emitted from the source and secondary pollutants form when primary pollutants chemically react in the atmosphere. O3 is a good example of a secondary pollutant because it is formed when volatile organic compounds and nitrogen oxides (NOx), precursors produced from motor vehicles and industrial sources, react in the presence of sunlight. Owing to the nature of its production, O3 has a diurnal profile with rise in the morning after heavy traffic and peak in the 10:00 a.m. to 6:00 p.m. period. In the evening, scavenging of O3 by nitric oxide (NO) titration in areas with heavy traffic reduces O3 to much lower levels, compared to daytime highs. High O3 levels may occur in downwind communities later in the afternoon and evening, stemming from airborne transport to areas without heavy traffic. O3 is a powerful oxidant and respiratory tract irritant in adults and children causing a number of symptoms including shortness of breath, chest pain, etc., when inhaling deeply. What are the two types of pollutants? a) First and second b) Main and secondary c) Primary and secondary It is a secondary pollutant that causes a number of symptoms such as: shortness of breath, chest pain, etc., when inhaling deeply. a) 3O b) O3 c) Chemicals​

Answer 1

Based on reading about environmental air pollution (primary and secondary pollutants), I answer the questions:

What are the two types of pollutants?

Primary and secondary, option c.

It is a secondary pollutant that causes a number of symptoms such as: shortness of breath, chest pain, etc., when inhaling deeply.

b) O3.

Los contaminantes del aire se clasifican en dos tipos: primarios y secundarios.

Los contaminantes primarios son aquellos emitidos directamente al ambiente desde la fuente que lo produce, como es el caso del monóxido de carbono que expulsan los vehículos de combustión interna.

Por su parte, los contaminantes secundarios son aquellos que resultan de la reacción química de un contaminante primario con moléculas presentes en la atmósfera, por ejemplo, el ozono u O3.

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