As wildfires raged in New Jersey and New York, health officials closely monitored air quality. Here's what they say about ...

A thick smog, visible from space, has engulfed Pakistan's Punjab province, leading to record-high pollution levels and ...

Yunnan Key Laboratory of Plateau Geographical Processes and Environmental Changes, Faculty of Geography, Yunnan Normal University, 650500 Kunming, China ...

地质历史时期，红层的沉积现象非常广泛，其中尤以海相红层引起了地质学家的广泛关注。海相红层的形成不仅与水体环境密切相关，还受到生物活动和成岩过程的深刻影响。众所周知，海相红层的主要致色矿物是赤铁矿，而三价铁矿物的形成通常需要氧化剂的参与，因此，传统观点 ...

这种设备采用生物膜法处理方式，其中AO工艺（缺氧-好氧）是一种高效脱氮工艺，具有很高的处理效果。经过处理后的水质达到国家标准，可以直接排放。A/O法一体化污水处理设备适用于各种污水处理，包括城市污水处理、工业污水处理、农村污水处理等，其处理效果比传统 ...

As a young woman, Aunty Mo grew up in a society where a woman could drive safely around the city, or trek from one village to another without fear of being molested. There was no kidnapping. In those ...

This concept is particularly well illustrated by marine animals that inhabit oxic–anoxic boundary zones: their chemoautotrophic endosymbionts provide energy and nutrients that enable host ...

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In total, 11 plants were included, servicing a population of 2.2 million people. All 11 plants operated with the secondary wastewater treatment systems, such as biological aerated filter, cyclic ...